参考答案和解析
正确答案: C
解析:
语境搭配题。结合语境,此句表达的是:环境保护现在比以往更加迫切。所以,这里应填形容词D。environmental protection为固定搭配,意为“环境保护”。
更多“单选题______A food B water C medical D environmental”相关问题
  • 第1题:

    24. Which of the following is TRUE?

    A. All the cities are using hydrapulers.

    B. All the rubbish is made up of the packages and cans.

    C. In the course of recycling,water is needed in the hydrapuler.

    D. The Americans only eat the food in packages and cans.


    正确答案:C
    24.C【解析】由第三段第一句可知A错误;由第一段第二句可知B项错误;D在文中并来提及,属无中生有;由第三段第四句可知C项正确。故选C。

  • 第2题:

    During the towing of a survival craft,a lookout should be on station to ______.

    A.release the towline in an emergency

    B.help the helmsman steer

    C.look for food and water

    D.check the water level in the bilge


    正确答案:A

  • 第3题:

    We cannot exist without air,food or water.

    A: expand
    B: rise
    C: live
    D: quit

    答案:C
    解析:
    句意:离开空气、食物和水,我们就不能生存。exist意为“存在,生存”, live意为“生存,活着”,意思最为相近,故选C。 expand发展,扩展;rise上升,提高;quit停止,离开。

  • 第4题:

    The food we eat seems to have profound effects on our health.Although science has made enormous steps in making food more fit to eat ,it has, at the same time,made many foods unfit to eat. Some research has shown that perhaps eighty percent of all human illnesses are related to diet and forty percent of cancer is related to the diet as well,especially cancer of the colon. Different cultures are more likely to cause certain different illnesses because of the food that is characteristic in these cultures. That food is related to illness is nto a new discovery. In 1945, about 35 years ago, government researchers realized that nitrates, commonly used to preserve color in meats,and other food additives,caused cancer. Yet, these carcinogenic additives remain in our food, and it becomes more difficult all the time to know which things on the packaging labels of processed food are helpful or harmful. The additives which we eat are not all so direct. Farmers often give penicillin to beef and living animals, and because of this ,penicillin has been found in the milk of treated cow. Sometimes similar drugs are given to animals not for medical purposes,but for financial reasons. The farmers are simply trying to fatten the animals in order to obtain a higher price on the market. Although the Food and Drug Administration(FDA) has tried repeatedly to control these procedures, the practices continue.
    Which of the following statements is NOT ture?

    a.Drugs are always given to animals for medical reasons
    b.Some of the additives in our food are added to the food itself and some are given to the living animals
    c.Researchers have known about the potential dangers of food additives for over thirty-five years.
    d.Food may cause forty percent of cancer in world.

    答案:A
    解析:

  • 第5题:

    共用题干
    Water一the Issue of This Century
    The world is running short of freshwater. Populations are growing bigger and thirstier (渴的),with the result that freshwater is becoming increasingly scarce(缺乏).Half the world's wetlands have disappeared during the last century,while estimates suggest that wa- ter use will rise by 50% in the next 30 years.
    The World Bank report estimates that as much as half of the world's population,concentrated in Africa,the Middle East and south Asia,will face“severe water shortages”by 2025.Local water conflicts and the loss of freshwater ecosystems appear large in some re- gions.
    A similar picture emerges from the globe's salt water regions. Three-quarters of the world's people may live within 100km of the sea in 2025,putting even more pressure on stretched coastal ecosystems. Two thirds of fisheries(渔业)are exploited at or beyond their sustainable limits, and half the world's coral reefs(珊瑚礁)may perish in 100 years. Almost 60% of coral reefs and 34% of fish species are at risk from human activities,the Bank says.
    The report concludes that there is ample evidence to justify immediate and coordinated action to safeguard supplies and use water more efficiently.
    Fresh water consumption is rising quickly,and the availability of water in some regions is likely to become one of the most pressing issues of the 21st century.
    A third of the world's popu1ation一around two billion people一live in countries that are experiencing moderate to high water shortages.That proportion could rise to half or more in the next 30 years unless institutions(制度)change to ensure better conservation and alloca- tion of water.
    China is one country where the portents(征兆)are gloomy. The most waterstressed country in East Asia,China is exploiting 44%of its usable water,a figure projected to rise to6O%by 2020.Primary withdrawal of water of more than 60%is widely considered by water experts to exceed the environmental carrying capacity of a river basin system. Although
    China's total use appears still to be reasonable,it has several basins that are severely stressed environmentally.
    Withdrawals exceed environmental limits in Afghanistan and Pakistan,and will exceed them in India by 2020.In the Middle East and North Africa,only Morocco has unexploited water resources.The rest have exceeded environmental limits and many are mining aquifers (蓄水层)一bodies of water-bearing rock一the report says.

    India exceeds environmental limits for water use.
    A: Right
    B: Wrong
    C: Not mentioned

    答案:B
    解析:
    题干意为“据估计,30年以后水的使用量将增加50%”。利用题干中的细节 信息词/短语water use, 50% , next 30 years作为定位线索,在短文第一段中寻找到相关句: The world is running short of fresh water. Populations are growing bigger and thirstier(渴 的),with the result that freshwater is becoming increasingly scarce(缺乏).Half the world's wetlands have disappeared during the last century,while estimates suggest that water use will rise by 50% in the next 30 years.相关句(带下划线的句子)意为“在上个世纪的100年里世界上一半的沼泽地已经消失了,而依据人们的估计来看,30年后水的使用量将增加50%”, 很明显题干陈述的意义与短文中的相关内容一致,因此题干陈述了正确的信息。所以答案为A。
    题干意为“大多数发达国家20年以后将面临水的短缺问题”。利用题干中 的细节信息词/短语most developed countries, water shortages, in 20 years作为定位线索, 结果发现most developed countries根本没有在短文中出现,短文中也没有具体提到发达国家水短缺的情况,因此题干陈述的信息是短文中未提及的信息。所以答案为C。
    题干意为“到了2025年,地球上大多数的人可能会生活在距离海洋100公 里的范围里”。利用题干中的细节信息短语most of the world's population, 100km of the sea, in 2025作为定位线索,这样在第三段中找到相关句:A similar picture emerges from the globe's salt water regions. Three-quarters of the world's people(与题干中的most of the world's population呼应)may live within 100km of the sea in 2025 , putting even more pressure on stretched coastal ecosystems. Two thirds of fisheries(渔业)are exploited at or beyond their sustainable limits, and half the world's coral reefs(珊瑚礁)may perish in 100 years.Almost 60% of coral reefs and 34% of fish species are at risk from human activities, the Bank says.相关句(第三段第二句)提到“到2025年,世界上3/4的人将可能生活在距离海洋100公里的范围里”,显然题干陈述的意义与短文相关内容一致。所以答案为A。到目前为 止,在完成的3道题的答案里出现了2个A,1个C,剩下的4道题肯定至少会出现1-3个 B,因此如果考虑节约答题时间,剩下的4小题全选B,这样在该阅读理解题上就通过完成3 小题而直接拿到5小题的分数(即拿到5分!)
    题干意为“几乎所有的珊瑚礁都可能在10。年后消失”。利用题干中的细节 信息短语almost all coral reefs, in 100 years作为定位线索,这样在第三段中找到相关句:A similar picture emerges from the globe's salt water regions. Three-quarters of the world's people may live within 100km of the sea in 2025,putting even more pressure on stretched coastal ecosystems. Two thirds of fisheries(渔业)are exploited at or beyond their sustainable limits,and half the world's coral reefs(珊瑚礁)may perish in 100 years.Almost 60% of coral reefs and 34% of fish species are at risk from human activities, the Bank says.相关句(第三段倒数第二句)意为“2/3的渔业开发已经处于可承受的边缘,甚至超出了可承受的范围,世界上一半的珊瑚礁可能会在100年后消失”。短文提到“一半的珊瑚礁”可能会在100年后消失,而不是“几乎所有的珊瑚礁”可能会在100年后消失,因此题干陈述的信息与短文内 容不一致。所以答案为B。
    题干意为“大西洋中的一些鱼类正处于危险的状况中”。利用题干中的细节 信息词/短语some species of fish, Atlantic, dangerously low levels作为定位线索,在第三段 中寻找到相关句:A similar picture emerges from the globe's salt water regions. Three-quarters of the world's people may live within 100km of the sea in 2025,putting even more pressure on stretched coastal ecosystems. Two thirds of fisheries(渔业) are exploited at or beyond their sustainable limits,and half the world's coral reefs(珊瑚礁)may perish in 100 years. Almost 60% of coral reefs and 34% of fish species are at risk from human activities, the Bank says.相关句(带下划线的句子)提到“世界银行说几乎有60%的珊瑚礁和34%的鱼 类因为人类的活动而处于危险的状况中”,这个句子陈述的是全世界鱼类的情况,至于在大西洋是否也是这样,该句中没有提到,依据该句意义也无法推断出大西洋地区鱼类的情况。短文中的其他句子没有再提及鱼类的情况,由此可判断出题干陈述的信息是短文中未提及的信 息。所以答案为C。
    题干意为“世界银行的报告意味着应该采取紧急行动来保护水资源的供 应”。利用题干中的细节信息词/短语the World Bank report, urgent action, water supplies 作为定位线索,在第四段中寻找到相关句:The report(指上文中提到的世界银行的报告) concludes that there is ample evidence to justify immediate and coordinated action to safe- guard supplies and use water more efficiently.第四段是一个独立成段句,该段意为“那份报告得出的结论是有大量的证据证明应该立刻采取协调一致的行动来保护水资源的供应,并更有效地使用水资源”。显然题干陈述的意义与短文中的相关意义一致,因此答案为A。
    题干意为“印度(现在)超过了水资源的环境使用极限”。利用题干中的细节 信息词/短语India , environmental limits , water use作为定位线索,在最后一段中寻找到相关句:Withdrawals(与上文中提到的withdrawal of water<水资源的使用>呼应)exceed environmental limits in Afghanistan and Pakistan,and will exceed them in India by 2020.In the

  • 第6题:

    The food we eat seems to have profound effects on our health.Although science has made enormous steps in making food more fit to eat ,it has, at the same time,made many foods unfit to eat. Some research has shown that perhaps eighty percent of all human illnesses are related to diet and forty percent of cancer is related to the diet as well,especially cancer of the colon. Different cultures are more likely to cause certain different illnesses because of the food that is characteristic in these cultures. That food is related to illness is nto a new discovery. In 1945, about 35 years ago, government researchers realized that nitrates, commonly used to preserve color in meats,and other food additives,caused cancer. Yet, these carcinogenic additives remain in our food, and it becomes more difficult all the time to know which things on the packaging labels of processed food are helpful or harmful. The additives which we eat are not all so direct. Farmers often give penicillin to beef and living animals, and because of this ,penicillin has been found in the milk of treated cow. Sometimes similar drugs are given to animals not for medical purposes,but for financial reasons. The farmers are simply trying to fatten the animals in order to obtain a higher price on the market. Although the Food and Drug Administration(FDA) has tried repeatedly to control these procedures, the practices continue. Which of the following statements is NOT ture?()

    • A、Drugs are always given to animals for medical reasons
    • B、Some of the additives in our food are added to the food itself and some are given to the living animals
    • C、Researchers have known about the potential dangers of food additives for over thirty-five years.
    • D、Food may cause forty percent of cancer in world.

    正确答案:A

  • 第7题:

    单选题
    During the towing of a survival craft,a lookout should be on station to().
    A

    release the towline in an emergency

    B

    help the helmsman steer

    C

    look for food and water

    D

    check the water level in the bilge


    正确答案: C
    解析: 暂无解析

  • 第8题:

    单选题
    Which of the following steps should normally be taken first by those who have boarded a liferaft in an emergency situation?()
    A

    Ration food and water supplies

    B

    Search for survivors

    C

    Determine position and closest point of land

    D

    Check pyrotechnic supplies


    正确答案: C
    解析: 暂无解析

  • 第9题:

    单选题
    Sea water temporarily pumped into tanks to simulate the increased vertical loading of environmental forces is termed().
    A

    preload

    B

    liquid variable load

    C

    fixed load

    D

    basic load


    正确答案: D
    解析: 暂无解析

  • 第10题:

    单选题
    Which step should normally be taken FIRST by those who have boarded a liferaft in an emergency?()
    A

    Ration food and water supplies

    B

    Take anti-seasickness pills,if available

    C

    Determine position and closest point of land

    D

    Check pyrotechnic supplies


    正确答案: C
    解析: 暂无解析

  • 第11题:

    单选题
    Why are small animals important?
    A

    They are part of the balance of nature and the food chain.

    B

    They are beautiful.

    C

    Bigger animals are eaten by them

    D

    Without them, there may be no water.


    正确答案: A
    解析:
    细节理解题。根据第四段中的最后一句话“These small animals, such as frogs and snails, play a very important part in keeping the balance of nature.”可知,小动物在维持自然界平衡中起着重要的作用,所以选择答案A。

  • 第12题:

    单选题
    Which of the following operations may be dangerous?
    A

    Overfilling the cooker with food and water.

    B

    Cleaning the cooker with detergent.

    C

    Cooling the cooker with cold water.

    D

    Setting too little cooking time.


    正确答案: B
    解析:
    判断推理题。题干意为“下面哪一项操作可能是危险的?”阅读全文,我们可以发现选项A(在锅内放过多的水和食物)与文章中的第二条规则矛盾,正确答案为A。

  • 第13题:

    The major components which determine the length of catenary in a deployed anchor cable are water depth,cable tension,and ______.

    A.environmental forces

    B.bottom conditions

    C.cable weight

    D.water density


    正确答案:C

  • 第14题:

    What represents poor sanitary procedures ________.

    A.Keep and use a separate filling hose for potable(drinking)water

    B.Locate potable(drinking)water tanks as low as possible in the bilge

    C.Eliminate enclosed spaces in which trash,food particles,dirt may gather

    D.After washing dishes with soap and warm water,sterilize them in water of at least 170℉(76.7℃)


    正确答案:B

  • 第15题:

    共用题干
    Drying Ways for Food

    1.Centuries ago,man discovered that removing moisture from food helps to preserve it,and that the easiest way to do this is to expose the food to sun and wind.In this way the North American Indians produce pemmican(dried meat ground into powder and made into cakes),the Scandinavians make stockfish and the Arabs dried dates and"apricot leather".
    2.All foods including water,cabbage and other leaf vegetables contain as much as 93%water, potatoes and other root vegetables 80%,lean meat 75%and fish,anything from 20%to 60%,depending on how fatty it is.If this water is removed,the activity of the bacteria which causes food to go bad is checked.
    3.Fruit is sun-dried in Asia Minor,Greece,Spain and other Mediterranean countries,and also in California,South Africa and Australia. The methods used vary, but in general,the fruit is spread out on trays in drying yards in the hot sun.In order to prevent darkening,pears,peaches and apricots are exposed to the fumes of burning sulfur before drying. Plums,for making prunes, and certain varieties of grapes for making raisins and currants,are dipped in an alkaline solution in order to crack the skins of the fruit slightly and remove their wax coating,so as to increase the rate of drying.
    4.Nowadays most foods are dried mechanically.The conventional method of such dehydration is to put food in chambers through which hot air is blown at temperatures of about 110℃at entry and to about 43℃at exit. This is the usual method for drying such things as vegetables,minced meat, and fish.
    5.Liquids such as milk,coffee,tea,soups and eggs may be dried by pouring them over a heated steel cylinder,by spraying them into a chamber through which a current of hot air passes.In the first case,the dried material is scraped off the roller as a thin film which is then broken up into small,though still relatively coarse flakes.In the second process,it falls to the bottom of the chamber as a fine powder. Where recognizable pieces of meat and vegetables are required,as in soup, the ingredients are dried separately and then mixed.
    6.Dried foods take up less room and weigh less than the same food packed in cans or frozen, and they do not need to be stored in special conditions.For these reasons they are invaluable to the climbers,explorers and soldiers in battle,who have little storage space.They are also popular with housewives because it takes so little time to cook them.Usually it is just a case of replacing the dried-out moisture with boiling water.

    Paragraph 4______
    A:Drying Fruit in the Traditional Way.
    B:Food Drying Histrory.
    C:Water in Food.
    D:Drying of Liquid Food.
    E:Advantages of Dry Food.
    F: Mechanical Food Dehydration.

    答案:F
    解析:
    本题考查的是对所读材料大意与主旨的掌握。由本段首句可知,本段中,心意思是所有的食物都含有水分。
    本题考查的是对所读材料大意与主旨的掌握。本段中心意思是传统的水果干制方法。
    本题考查的是对所读材料大意与主旨的掌握。本段中心意思是用机器干制食物的方法。
    本题考查的是对所读材料大意与主旨的掌握。本段中心意思是干燥流质食物的方法。
    本题考查的是对阐述文章的主旨事实与细节的了解。依据是第二段的第二句“If this water is removed , the activity of the bacteria which causes food to go bad is checked."
    本题考查的是对阐述文章的主旨事实与细节的了解。依据是第三段的第一句“Fruit is sun-dried in Asia Minor , Greece , Spain and other Mediterranean countries , and also in California,South Africa and Australia."
    本题考查的是对阐述文章的主旨事实与细节的了解。依据是第三段的第四句“Plums , for making prunes , and certain varieties of grapes for making raisins and currants , are dipped in an alkaline solution in order to crack the skins of the fruit slightly and remove their wax coating,so as to increase the rate of drying."
    本题考查的是对阐述文章的主旨事实与细节的了解。依据是第五段的第二句“In the first case , the dried material is scraped off the roller as a thin film which is then broken up into small,though still relatively coarse flakes."

  • 第16题:

    What are the children SaveTheYouth helps NOT in need of?

    A. Improved cleanliness

    B. Food and water

    C. Medical insurance

    D. Doctors

    答案:C
    解析:

  • 第17题:

    California wildfires are being magnified and made so much worse by the bad environmental laws which aren’t allowing massive amounts of readily available water to be properly______。

    A.utilized
    B.changed
    C.avoided
    D.converted

    答案:A
    解析:
    本题考查词义辨析。题目意为“加利福尼亚州的野火因不允许大量现成的水得到适当利用的恶劣环境法而被加剧,变得更加严重。”A选项“使用,运用”,B选项“改变,变化”,C选项“避免,回避”,D选项“转变,改变”。根据句意,应该是由于环境法的规定,现成的水没有得到利用,因此野火烧的更加严重,应该选择表示使用的意思,选项A正确。
      

  • 第18题:

    单选题
    The davit aboard a ship is used to().
    A

    lower personnel down by a transfer basket

    B

    lower food and water to personnel in a life raft

    C

    lower the life raft down with its full complement

    D

    move equipment around the deck


    正确答案: B
    解析: 暂无解析

  • 第19题:

    单选题
    Solid waste generation,and electricity and water consumption are costly and have their own set of environmental().
    A

    inspect

    B

    impairs

    C

    impacts

    D

    insects


    正确答案: A
    解析: 暂无解析

  • 第20题:

    单选题
    The SOLAS convention about “passenger ship and dried food ship damage control” prescribes that the engine room emergency bilge water suction should connect with ()
    A

    the main S-W pump

    B

    ballast pump

    C

    air-conditioning water pump

    D

    the main S-W pump or ballast pumps that have the biggest output


    正确答案: A
    解析: 暂无解析

  • 第21题:

    问答题
    Research published in May 1998 by the Department of the Environment, Transport and the Regions (DETR) showed that reducing coastal and river pollution and ensuring a reliable water supply were among the top environmental priorities for the public.  All discharges to water in the UK require the consent of the appropriate regulatory authority. In England and Wales the Environment Agency’s principal method of controlling water pollution is through the regulation of all effluent discharges, including sewage, into groundwater, and inland and coastal waters. The Agency maintains public registers containing information about water quality, discharge consents, authorizations and monitoring. Applicants for consents to discharge have the right of appeal if they are dissatisfied with the Agency’s decision; most of these appeals are dealt with by the Planning Inspectorate, an executive agency of the DETR. In Scotland control is the responsibility of the Scottish Environment Protection Agency (SEPA), and most appeals are dealt with by the Scottish Office. In Northern Ireland the Environment and Heritage Service is responsible for controlling water pollution.  In 1997, there were 4,717 cases in England and Wales of discharges exceeding their consented limits, including a number of offences by water companies discharging insufficiently treated sewage. The majority of these breaches did not cause any significant environmental damage. However, the Environment Agency did bring 65 cases to court, of which 61 were successful, resulting in fines ranging from £ 440 to £ 12,000 and one prison sentence of two months. In Scotland, there were 2,734 pollution incidents in 1997; SEPA seeks prosecution in all significant cases.  In 1997 and 1998, the Government introduced statutory Environmental Quality Standards (EQSs) for 33 substances in water. The new regulations give legal force for the first time to standards for some of the most dangerous pollutants found in the aquatic environment.  In the UK, 96 percent of the population live in properties connected to a sewer, and sewage treatment works serve over 80 percent of the population. In England and Wales, the water industry is committed to an investment programme of some £ 11,000 million over ten years for improvements to water quality.  Progressively higher treatment standards for industrial waste effluents and new measures to combat pollution from agriculture are expected to bring further improvements in water quality. In Scotland, responsibility for the provision of all water and sewerage services lies with three Water and Sewerage Authorities, covering the north, east and west of the country.

    正确答案: 【参考译文】
    根据英国环境交通部于l998年5月公布的研究报告,减少沿海水域与河流的污染,保证供应安全用水,乃是广大公众在环保方面的当务之急。
    在英国,向水中倾倒任何东西,都需征得有关管理部门的同意。在英格兰和威尔士,环境署控制水污染的主要方法是监控一切流入地下水及内陆和沿海水域的废水,包括污水。环境署存有公开的记录,记载着水质、排放许可、授权单位、监督情况等事项。申请排放许可者如对环境署的决定不满,有权上诉,大多由计划督察团接受处理——督察团是部属的一个执行机构。在苏格兰,是由苏格兰环保署(SEPA)负责监控,上诉大多由驻苏格兰办事处接受处理。在北爱尔兰,水污染由环境与遗产局负责监控。
    1997年,在英格兰和威尔士共发生4717起超过许可限度的排污事件,其中有一些是水公司的过错,这些公司排放了未经充分处理的污水。这些违规行为绝大部分都没有对环境造成重大危害。然而,环境署也的确将65起违规事件送上法庭,其中61起环境署胜诉,判处的罚款自440镑至12000镑不等,还有一起判处败诉方两个月徒刑。在苏格兰,1997年共发生污染事件2734起;苏格兰环境保护署对情节严重者均予起诉。
    1997和1998年,政府实行法定环境质量标准,涉及水中33种物质。新规定使得关于在水中发现的几种最危险的污染物的标准第一次具有法律效力。
    在英国,96%人口的住宅与下水道系统相连,污水处理厂能为80%以上的人口服务。在英格兰和威尔士,水工业承诺在十年间将投资约110亿英镑,以改善水质。逐步提高工业废水处理标准,采取新措施以治理农业造成的污染,预计将会进一步提高水质。在苏格兰,三个给水排污管理局负责给水和排污的事宜,分管全国的北部、东部和西部地区。
    解析: 暂无解析

  • 第22题:

    单选题
    The food we eat seems to have profound effects on our health.Although science has made enormous steps in making food more fit to eat ,it has, at the same time,made many foods unfit to eat. Some research has shown that perhaps eighty percent of all human illnesses are related to diet and forty percent of cancer is related to the diet as well,especially cancer of the colon. Different cultures are more likely to cause certain different illnesses because of the food that is characteristic in these cultures. That food is related to illness is nto a new discovery. In 1945, about 35 years ago, government researchers realized that nitrates, commonly used to preserve color in meats,and other food additives,caused cancer. Yet, these carcinogenic additives remain in our food, and it becomes more difficult all the time to know which things on the packaging labels of processed food are helpful or harmful. The additives which we eat are not all so direct. Farmers often give penicillin to beef and living animals, and because of this ,penicillin has been found in the milk of treated cow. Sometimes similar drugs are given to animals not for medical purposes,but for financial reasons. The farmers are simply trying to fatten the animals in order to obtain a higher price on the market. Although the Food and Drug Administration(FDA) has tried repeatedly to control these procedures, the practices continue. Which of the following statements is NOT ture?()
    A

    Drugs are always given to animals for medical reasons

    B

    Some of the additives in our food are added to the food itself and some are given to the living animals

    C

    Researchers have known about the potential dangers of food additives for over thirty-five years.

    D

    Food may cause forty percent of cancer in world.


    正确答案: D
    解析: 暂无解析

  • 第23题:

    问答题
    Water is vital for our survival and for producing food. It takes about a thousand tons of water to produce one tone of grain that, fed to cows, produces only 18 pounds of meat. Today mankind is using about 160 billion tons more water each year than is being replenished by rain and fed back into water storages. If this water were carried in water trucks, it would require a 300, 000-mile-long convoy of trucks every day—a convoy length 37 times the diameter of the Earth. This is how much water we are using and not replenishing.

    正确答案:
    水是人类生存之所系,是食物生产之所需。生产一吨谷物需要耗费一千吨的水,而用一吨的谷物喂牛的话,只能为我们换取18磅的牛肉。如果将使用的水和下雨后蓄存的水相比较,那么人类可以说是入不敷出,每年大概多用了1600多亿吨水。如果用水车载水,那每天就得有一个30万英里长的车队,而这个车队的长度将是地球直径的37倍。这就是我们正在使用的水量,而不是正在获取的水量。
    解析: 暂无解析

  • 第24题:

    单选题
    Basic emergency care for third degree electrical burn is to().
    A

    flood the burned area with warm water for two minutes

    B

    brush away the charred skin and wrap the burned area

    C

    cover the burned area with a clean cloth and transport the patient to a medical facility

    D

    apply ointment or spray to the burned area and wrap with a clean cloth


    正确答案: A
    解析: 暂无解析