单选题As a gardener, Jim has to water the flowers and ______ the grass in the garden every morning.A trimB improveC refineD repair

题目
单选题
As a gardener, Jim has to water the flowers and ______ the grass in the garden every morning.
A

trim

B

improve

C

refine

D

repair


相似考题
更多“As a gardener, Jim has to water the flowers and ______ the g”相关问题
  • 第1题:

    He gets these flowers _____ every day.

    A、watered

    B、to water

    C、watering

    D、water


    正确答案:A

  • 第2题:

    By saying "the world has been spared a t.rue water war" (Line 1, Para.4), the author means( )

    [A] the water supply in the world is more than needed

    [B] the world has saved enough water to avoid the war

    [C] the world has never suffered a war triggered by water

    [D] the world spares no effort to avoid a war caused by water


    正确答案:C

  • 第3题:

    共用题干
    “Salty” Rice Plant Boosts Harvests
    British scientists are breeding a new generation of rice plants that will be able to grow in soil containing salt water. Their work may enable abandoned farms to become productive once more.
    Tim Flowers and Tony Yeo,from Sussex University's School of Biological Sciences,have spent several years researching how crops,such as rice,could be made to grow in water that has become salty.
    The pair have recently begun a three-year programme,funded by the Biotechnology and Biological Sciences Research Council,to establish which genes enable some plants to survive salty conditions. The aim is to breed this capability into crops,starting with rice.
    It is estimated that each year more than 10m hectares(公顷)of agricultural land are lost because salt gets into the soil and stunts(妨碍生长)plants. The problem is caused by several factors. In the tropics , mangroves(红树林)that create swamps(沼泽)and traditionally formed barriers to sea water have been cut down .In the Mediterranean,a series of droughts have caused the water table to drop,allowing sea water to seep(渗透)in. In Latin America , irrigation often causes problems when water is evaporated(蒸发)by the heat , leaving salt deposits behind.
    Excess salt then enters the plants and prevents them functioning normally.Heavy concentrations of minerals in the plants stop them drawing up the water they need to survive.
    To overcome these problems,Flowers and Yeo decided to breed rice plants that take in very little salt and store what they do absorb in cells that do not affect the plants' growth.They have started to breed these characteristics into a new rice crop,but it will take about eight harvests before the resulting seeds are ready to be considered for commercial use.
    Once the characteristics for surviving salty soil are known,Flowers and Yeo will try to breed the appropriate genes into all manners of crops and plants.Land that has been abandoned to na- ture will then be able to bloom again,providing much needed food in the poorer countries of the world.

    Flowers and Yeo have started a program______.
    A: to find ways to prevent water pollution
    B: to identify genes that promote growth in salty soil
    C: to breed rice plants that taste salty
    D: to find ways to remove excessive salt from soil

    答案:B
    解析:
    第二段的第一句话把两位研究人员Tim Flowers和Tony Yeo的关系讲得很清楚,他们来自同一所大学Sussex University的School of Biological Sciences,故是同事。从上下文看他们不可能是学生,更不会是种水稻的;第三段的第一句里用了pair这个词,但pair不一定就是夫妻,从他们的名字看他们不是同一个姓,而且Tim和Tony都是男性的名字。


    本题的答案可以在第三段里找到,这段的第一句话说他们开始了一个为期3年的研究项目,目的是“establish which genes enable some plants to survive salty condition”(确认哪些基因使得某些作物能在含盐的条件下生长)。这和选项B是同一个意思。


    引起盐分渗入土壤的3个原因都在第四段里谈到了:第一是阻档海水的天然屏障红树林被砍伐(A);第二是在地中海地区严重的旱灾导致水平面下降,海水渗透(B); 第三是在拉丁美洲,水分被高温蒸发后留下了盐分(D)。


    affect这个动词的意思是“影响”,和influence是同义词,在这个上下文里可以替换用。


    四个选项的意思分另,1是:肯定的(positive)、否定的(negative)、有怀疑的(suspicious)、冷淡的(indifferent),从全文看作者时他们的研究无疑是肯定的。

  • 第4题:

    共用题干
    “Salty” Rice Plant Boosts Harvests
    British scientists are breeding a new generation of rice plants that will be able to grow in soil containing salt water. Their work may enable abandoned farms to become productive once more.
    Tim Flowers and Tony Yeo,from Sussex University's School of Biological Sciences,have spent several years researching how crops,such as rice,could be made to grow in water that has become salty.
    The pair have recently begun a three-year programme,funded by the Biotechnology and Biological Sciences Research Council,to establish which genes enable some plants to survive salty conditions. The aim is to breed this capability into crops,starting with rice.
    It is estimated that each year more than 10m hectares(公顷)of agricultural land are lost because salt gets into the soil and stunts(妨碍生长)plants. The problem is caused by several factors. In the tropics , mangroves(红树林)that create swamps(沼泽)and traditionally formed barriers to sea water have been cut down .In the Mediterranean,a series of droughts have caused the water table to drop,allowing sea water to seep(渗透)in. In Latin America , irrigation often causes problems when water is evaporated(蒸发)by the heat , leaving salt deposits behind.
    Excess salt then enters the plants and prevents them functioning normally.Heavy concentrations of minerals in the plants stop them drawing up the water they need to survive.
    To overcome these problems,Flowers and Yeo decided to breed rice plants that take in very little salt and store what they do absorb in cells that do not affect the plants' growth.They have started to breed these characteristics into a new rice crop,but it will take about eight harvests before the resulting seeds are ready to be considered for commercial use.
    Once the characteristics for surviving salty soil are known,Flowers and Yeo will try to breed the appropriate genes into all manners of crops and plants.Land that has been abandoned to na- ture will then be able to bloom again,providing much needed food in the poorer countries of the world.

    Which of the following statements about Flowers and Yeo is true?
    A: They are students at Sussex University.
    B: They are rice breeders.
    C: They are husband and wife.
    D: They are colleagues at an institution of higher learning.

    答案:D
    解析:
    第二段的第一句话把两位研究人员Tim Flowers和Tony Yeo的关系讲得很清楚,他们来自同一所大学Sussex University的School of Biological Sciences,故是同事。从上下文看他们不可能是学生,更不会是种水稻的;第三段的第一句里用了pair这个词,但pair不一定就是夫妻,从他们的名字看他们不是同一个姓,而且Tim和Tony都是男性的名字。


    本题的答案可以在第三段里找到,这段的第一句话说他们开始了一个为期3年的研究项目,目的是“establish which genes enable some plants to survive salty condition”(确认哪些基因使得某些作物能在含盐的条件下生长)。这和选项B是同一个意思。


    引起盐分渗入土壤的3个原因都在第四段里谈到了:第一是阻档海水的天然屏障红树林被砍伐(A);第二是在地中海地区严重的旱灾导致水平面下降,海水渗透(B); 第三是在拉丁美洲,水分被高温蒸发后留下了盐分(D)。


    affect这个动词的意思是“影响”,和influence是同义词,在这个上下文里可以替换用。


    四个选项的意思分另,1是:肯定的(positive)、否定的(negative)、有怀疑的(suspicious)、冷淡的(indifferent),从全文看作者时他们的研究无疑是肯定的。

  • 第5题:

    共用题干
    Keeping Cut Flowers(鲜切花)
    1. While everybody enjoys fresh cut flowers around his/her house,few people know how to keep them for as long as possible .This may be done by keeping in mind a few simple facts.
    2. An important thing to remember about cut flowers is that they are sensitive to temperature.For example,studies have shown that cut carnations(康乃馨)retain their freshness eight times lon-ger when kept at 12℃than when kept at 26℃.Keeping freshly harvested flowers at the right tem-peratures is probably the most important aspect of flower care.
    3. Flowers are not intended by nature to live very long.Their biological purpose is simply to at-tract birds or insects,such as bees,for pollination(授粉).After that,they quickly dry up and die. The process by which flowers consume oxygen and produce carbon dioxide(二氧化碳), called respiration(呼吸),generates the energy the flower needs to give the flower its shape and color. The making of seeds also depends on this energy.While all living things respire,flowers have a high level of respiration.A result of all this respiration is heat,and for flowers the level of heat relative to the mass of the flower is very high.Respiration also brings about the eventual death of the flower. Thus the greater the level of respiration,the sooner the flower dies.
    4. How,then,to control the rate at which flowers die?By controlling respiration.How is respi-ration controlled?By controlling temperature .We know that respiration produces heat,but the re-verse(相反的过程)is also true. Thus by maintaining low temperatures , respiration is reduced and the cut flower will age more slowly.
    5. Another vital factor in keeping cut flowers is the quality of the water in which they are placed. Flowers find it difficult to“drink”water that is dirty or otherwise polluted.Even when water looks and smells clean,it almost certainly contains harmful substances that can endanger the flowers. To rid the water of these unwanted substances, household chlorine bleach(漂白剂)can be used in small quantities.It is recommended that 15 drops of chlorine bleach(at 4%solution)be add-ed to each litre of water. The water and solution should also be replaced each day.

    Paragraph 2________
    A: Control of Respiration
    B: Beauty of Fresh Cut Flowers
    C: Role of Respiration
    D: Most Important Aspect of Flower Care
    E: Need for Cleanwater
    F:.Ways of Stopping Respiration

    答案:D
    解析:
    本段的第一句和最后一句都是该段的主题句,但是最后一句是此题的答案,选项D 几乎是最后一句的原句重现,故选D。


    本段几乎都是在介绍呼吸的作用,从语篇中我们可以看到呼吸在花朵形成及死亡的过程中的作用以及它对种子和能量的形成中的作用,选项C符合题意,故选C。


    本题的题设具有迷惑性,选项A和选项F都是与“花朵的呼吸”有关,但是选项A 是说如何控制呼吸,而选项F是说如何停止呼吸,回到原文,我们发现作者并没有提到停止呼吸,只是说要通过降低温度来控制呼吸,故选A。


    本段第一句是该段的主题句,该段阐述了花朵护养中的另外一个重要因素——干净水的重要性。选项E符合题意,故选E。


    本题的答案在第一段,该段的最后一句话中的第一个词this是关键词,要回答该题,我们只需把这个this所代指的意思找到,从上下文可以看出,它代指了前一句中的How to keep them for as long as possible。选项D符合题意,故选D。


    本题其实与上面第24题意思相似,都是在说呼吸的作用。通过对24题的分析,我们知道呼吸在花朵一生中起到重要作用,选项B符合题意,故选B。


    本题的答案可以在第四段的最后一句中找到,把选项E填入空格中,该题几乎是第四段的最后一句的完整重现,故选E。


    本题较简单,只要找到全文的最后一句就能正确回答该题,选项F符合题意,故选F。

  • 第6题:

    jim has created a field hint for the address field. Users tell him this text disappears when they click in the address field. which one of the following is most likely reason?()

    • A、 the address field is computed 
    • B、 jim should have used a text popup       
    • C、 jim stored the field hint in the database    
    • D、 field hint only display when the user has not clicked in the field (field hint)

    正确答案:D

  • 第7题:

    单选题
    As a gardener, Jim has to water the flowers and ______ the grass in the garden every morning.
    A

    trim

    B

    improve

    C

    refine

    D

    repair


    正确答案: A
    解析:

  • 第8题:

    单选题
    () water is more expensive than fresh water It has high specific heat and low viscosity.
    A

    Distilled

    B

    Distilling

    C

    Boiling

    D

    Boiled


    正确答案: A
    解析: 暂无解析

  • 第9题:

    单选题
    Grandpa()to water the flowers now, It’s going to rain soon.
    A

    isn’t needing

    B

    needn’t

    C

    doesn’t need

    D

    needs


    正确答案: D
    解析: 暂无解析

  • 第10题:

    单选题
    The flowers _____ often.
    A

    must be water

    B

    must be watered

    C

    must watered

    D

    must water


    正确答案: B
    解析:
    句意:需要经常浇花。此处考查情态动词后接被动式(must+be done),故选B。

  • 第11题:

    单选题
    The user HR owns the EMP table. The user HR grants privileges to the user SCOTT by using this command:  SQL> GRANT SELECT,INSERT,UPDATE ON emp TO scott WITH GRANT OPTION; The user SCOTT executes this command to grant privileges to the user JIM: SQL> GRANT SELECT,INSERT,UPDATE ON hr.emp TO jim;  Now, the user HR decides to revoke privileges from JIM using this command: SQL> REVOKE SELECT,INSERT,UPDATE ON emp FROM jim; Which statement is true after HR issues the REVOKE command()
    A

    The command fails because SCOTT still has privileges.

    B

    The command succeeds and privileges are revoked from JIM.

    C

    The command fails because HR cannot revoke the privileges from JIM.

    D

    The command succeeds and only HR has the privilege to perform the SELECT, INSERT, and UPDATEoperations on the EMP table.


    正确答案: D
    解析: 暂无解析

  • 第12题:

    多选题
    The session of user SCOTT receives the following error after executing an UPDATE command on the EMPtable: ERROR at line 1: ORA-00060: deadlock detected while waiting for resource On investigation, you find that a session opened byuser JIM has a transaction that caused the deadlock.  Which two statements are true regarding the session ofSCOTT in this scenario()
    A

    The session is terminated after receiving the error and JIM can continue with his transaction.

    B

    SCOTT should perform a COMMIT or ROLLBACK to allow JIM to continue with his transaction.

    C

    The session is rolled back after receiving the error and JIM can continue with his transaction.

    D

    SCOTT has to reexecute the last command in the transaction after he commits the transaction.


    正确答案: C,B
    解析: 暂无解析

  • 第13题:

    Jim is the only one of the staff members who ____to be promoted.

    Aare

    Bhave been

    Cis

    D has been


    正确答案:C

  • 第14题:

    Jim has made up his mind not to go to the meeting.

    A: agreed
    B: decided
    C: promised
    D:wanted

    答案:B
    解析:
    句意为:Jim决定不去参加会议。画线短语make up his mind意为“决定,下决心”; agree意为“同意”;decide意为“决定”;promise意为“许诺”;want意为“想”。画线部分与decide同义,因此B项正确。

  • 第15题:

    共用题干
    “Salty” Rice Plant Boosts Harvests
    British scientists are breeding a new generation of rice plants that will be able to grow in soil containing salt water. Their work may enable abandoned farms to become productive once more.
    Tim Flowers and Tony Yeo,from Sussex University's School of Biological Sciences,have spent several years researching how crops,such as rice,could be made to grow in water that has become salty.
    The pair have recently begun a three-year programme,funded by the Biotechnology and Biological Sciences Research Council,to establish which genes enable some plants to survive salty conditions. The aim is to breed this capability into crops,starting with rice.
    It is estimated that each year more than 10m hectares(公顷)of agricultural land are lost because salt gets into the soil and stunts(妨碍生长)plants. The problem is caused by several factors. In the tropics , mangroves(红树林)that create swamps(沼泽)and traditionally formed barriers to sea water have been cut down .In the Mediterranean,a series of droughts have caused the water table to drop,allowing sea water to seep(渗透)in. In Latin America , irrigation often causes problems when water is evaporated(蒸发)by the heat , leaving salt deposits behind.
    Excess salt then enters the plants and prevents them functioning normally.Heavy concentrations of minerals in the plants stop them drawing up the water they need to survive.
    To overcome these problems,Flowers and Yeo decided to breed rice plants that take in very little salt and store what they do absorb in cells that do not affect the plants' growth.They have started to breed these characteristics into a new rice crop,but it will take about eight harvests before the resulting seeds are ready to be considered for commercial use.
    Once the characteristics for surviving salty soil are known,Flowers and Yeo will try to breed the appropriate genes into all manners of crops and plants.Land that has been abandoned to na- ture will then be able to bloom again,providing much needed food in the poorer countries of the world.

    Which of the following is NOT mentioned as a cause of the problem discussed in the passage?
    A: Natural barriers to sea water have been destroyed.
    B: The water table has gone down after droughts.
    C: Sea level has been continuously rising.
    D: Evaporation of water leaves salt behind.

    答案:C
    解析:
    第二段的第一句话把两位研究人员Tim Flowers和Tony Yeo的关系讲得很清楚,他们来自同一所大学Sussex University的School of Biological Sciences,故是同事。从上下文看他们不可能是学生,更不会是种水稻的;第三段的第一句里用了pair这个词,但pair不一定就是夫妻,从他们的名字看他们不是同一个姓,而且Tim和Tony都是男性的名字。


    本题的答案可以在第三段里找到,这段的第一句话说他们开始了一个为期3年的研究项目,目的是“establish which genes enable some plants to survive salty condition”(确认哪些基因使得某些作物能在含盐的条件下生长)。这和选项B是同一个意思。


    引起盐分渗入土壤的3个原因都在第四段里谈到了:第一是阻档海水的天然屏障红树林被砍伐(A);第二是在地中海地区严重的旱灾导致水平面下降,海水渗透(B); 第三是在拉丁美洲,水分被高温蒸发后留下了盐分(D)。


    affect这个动词的意思是“影响”,和influence是同义词,在这个上下文里可以替换用。


    四个选项的意思分另,1是:肯定的(positive)、否定的(negative)、有怀疑的(suspicious)、冷淡的(indifferent),从全文看作者时他们的研究无疑是肯定的。

  • 第16题:

    共用题干
    Keeping Cut Flowers(鲜切花)
    1. While everybody enjoys fresh cut flowers around his/her house,few people know how to keep them for as long as possible .This may be done by keeping in mind a few simple facts.
    2. An important thing to remember about cut flowers is that they are sensitive to temperature.For example,studies have shown that cut carnations(康乃馨)retain their freshness eight times lon-ger when kept at 12℃than when kept at 26℃.Keeping freshly harvested flowers at the right tem-peratures is probably the most important aspect of flower care.
    3. Flowers are not intended by nature to live very long.Their biological purpose is simply to at-tract birds or insects,such as bees,for pollination(授粉).After that,they quickly dry up and die. The process by which flowers consume oxygen and produce carbon dioxide(二氧化碳), called respiration(呼吸),generates the energy the flower needs to give the flower its shape and color. The making of seeds also depends on this energy.While all living things respire,flowers have a high level of respiration.A result of all this respiration is heat,and for flowers the level of heat relative to the mass of the flower is very high.Respiration also brings about the eventual death of the flower. Thus the greater the level of respiration,the sooner the flower dies.
    4. How,then,to control the rate at which flowers die?By controlling respiration.How is respi-ration controlled?By controlling temperature .We know that respiration produces heat,but the re-verse(相反的过程)is also true. Thus by maintaining low temperatures , respiration is reduced and the cut flower will age more slowly.
    5. Another vital factor in keeping cut flowers is the quality of the water in which they are placed. Flowers find it difficult to“drink”water that is dirty or otherwise polluted.Even when water looks and smells clean,it almost certainly contains harmful substances that can endanger the flowers. To rid the water of these unwanted substances, household chlorine bleach(漂白剂)can be used in small quantities.It is recommended that 15 drops of chlorine bleach(at 4%solution)be add-ed to each litre of water. The water and solution should also be replaced each day.

    A few simple facts will help you keep cut flowers________.
    A: by keeping its original shape and color
    B: in the life of cut flowers
    C: to produce carbon dioxide
    D: for as long as possible
    E: by controlling temperature
    F: to replace the water and solution every day

    答案:D
    解析:
    本段的第一句和最后一句都是该段的主题句,但是最后一句是此题的答案,选项D 几乎是最后一句的原句重现,故选D。


    本段几乎都是在介绍呼吸的作用,从语篇中我们可以看到呼吸在花朵形成及死亡的过程中的作用以及它对种子和能量的形成中的作用,选项C符合题意,故选C。


    本题的题设具有迷惑性,选项A和选项F都是与“花朵的呼吸”有关,但是选项A 是说如何控制呼吸,而选项F是说如何停止呼吸,回到原文,我们发现作者并没有提到停止呼吸,只是说要通过降低温度来控制呼吸,故选A。


    本段第一句是该段的主题句,该段阐述了花朵护养中的另外一个重要因素——干净水的重要性。选项E符合题意,故选E。


    本题的答案在第一段,该段的最后一句话中的第一个词this是关键词,要回答该题,我们只需把这个this所代指的意思找到,从上下文可以看出,它代指了前一句中的How to keep them for as long as possible。选项D符合题意,故选D。


    本题其实与上面第24题意思相似,都是在说呼吸的作用。通过对24题的分析,我们知道呼吸在花朵一生中起到重要作用,选项B符合题意,故选B。


    本题的答案可以在第四段的最后一句中找到,把选项E填入空格中,该题几乎是第四段的最后一句的完整重现,故选E。


    本题较简单,只要找到全文的最后一句就能正确回答该题,选项F符合题意,故选F。

  • 第17题:

    共用题干
    Keeping Cut Flowers(鲜切花)
    1. While everybody enjoys fresh cut flowers around his/her house,few people know how to keep them for as long as possible .This may be done by keeping in mind a few simple facts.
    2. An important thing to remember about cut flowers is that they are sensitive to temperature.For example,studies have shown that cut carnations(康乃馨)retain their freshness eight times lon-ger when kept at 12℃than when kept at 26℃.Keeping freshly harvested flowers at the right tem-peratures is probably the most important aspect of flower care.
    3. Flowers are not intended by nature to live very long.Their biological purpose is simply to at-tract birds or insects,such as bees,for pollination(授粉).After that,they quickly dry up and die. The process by which flowers consume oxygen and produce carbon dioxide(二氧化碳), called respiration(呼吸),generates the energy the flower needs to give the flower its shape and color. The making of seeds also depends on this energy.While all living things respire,flowers have a high level of respiration.A result of all this respiration is heat,and for flowers the level of heat relative to the mass of the flower is very high.Respiration also brings about the eventual death of the flower. Thus the greater the level of respiration,the sooner the flower dies.
    4. How,then,to control the rate at which flowers die?By controlling respiration.How is respi-ration controlled?By controlling temperature .We know that respiration produces heat,but the re-verse(相反的过程)is also true. Thus by maintaining low temperatures , respiration is reduced and the cut flower will age more slowly.
    5. Another vital factor in keeping cut flowers is the quality of the water in which they are placed. Flowers find it difficult to“drink”water that is dirty or otherwise polluted.Even when water looks and smells clean,it almost certainly contains harmful substances that can endanger the flowers. To rid the water of these unwanted substances, household chlorine bleach(漂白剂)can be used in small quantities.It is recommended that 15 drops of chlorine bleach(at 4%solution)be add-ed to each litre of water. The water and solution should also be replaced each day.

    Respiration plays a key role________.
    A: by keeping its original shape and color
    B: in the life of cut flowers
    C: to produce carbon dioxide
    D: for as long as possible
    E: by controlling temperature
    F: to replace the water and solution every day

    答案:B
    解析:
    本段的第一句和最后一句都是该段的主题句,但是最后一句是此题的答案,选项D 几乎是最后一句的原句重现,故选D。


    本段几乎都是在介绍呼吸的作用,从语篇中我们可以看到呼吸在花朵形成及死亡的过程中的作用以及它对种子和能量的形成中的作用,选项C符合题意,故选C。


    本题的题设具有迷惑性,选项A和选项F都是与“花朵的呼吸”有关,但是选项A 是说如何控制呼吸,而选项F是说如何停止呼吸,回到原文,我们发现作者并没有提到停止呼吸,只是说要通过降低温度来控制呼吸,故选A。


    本段第一句是该段的主题句,该段阐述了花朵护养中的另外一个重要因素——干净水的重要性。选项E符合题意,故选E。


    本题的答案在第一段,该段的最后一句话中的第一个词this是关键词,要回答该题,我们只需把这个this所代指的意思找到,从上下文可以看出,它代指了前一句中的How to keep them for as long as possible。选项D符合题意,故选D。


    本题其实与上面第24题意思相似,都是在说呼吸的作用。通过对24题的分析,我们知道呼吸在花朵一生中起到重要作用,选项B符合题意,故选B。


    本题的答案可以在第四段的最后一句中找到,把选项E填入空格中,该题几乎是第四段的最后一句的完整重现,故选E。


    本题较简单,只要找到全文的最后一句就能正确回答该题,选项F符合题意,故选F。

  • 第18题:

    单选题
    Jim, ______ two of his colleagues, ______ for the annual garden competition.
    A

    together with; have joined

    B

    along with; has entered

    C

    except for; has taken part

    D

    apart from; have participated


    正确答案: C
    解析:
    句意:Jim和他的两个同事报名参加每年举行的园艺大赛。“together with”与“along with”都是“与…一起,连同”的意思,在句中做插入语,句子真正的主语只有Jim,所以谓语动词要用单数形式。“except for”与“apart from”都是“除…之外”的意思。enter for是固定搭配,意为“报名参加(比赛)”。join,take part和participate都可以与in搭配表示“参加(活动)”。

  • 第19题:

    单选题
    Why the cooling water of the diesel engine should be treated? Because the()
    A

    Cooling water is alkalescence

    B

    cooling water is acidity

    C

    cooling water has salinity

    D

    cooling water has impurity


    正确答案: B
    解析: 暂无解析

  • 第20题:

    单选题
    jim has created a field hint for the address field. Users tell him this text disappears when they click in the address field. which one of the following is most likely reason?()
    A

     the address field is computed 

    B

     jim should have used a text popup       

    C

     jim stored the field hint in the database    

    D

     field hint only display when the user has not clicked in the field (field hint)


    正确答案: B
    解析: 暂无解析

  • 第21题:

    单选题
    Although Jim has lived in Beijing for five years, but he doesn't speak Chinese well.
    A

    has lived

    B

    for

    C

    but

    D

    speak


    正确答案: B
    解析:

  • 第22题:

    单选题
    When the writer says that Jim has a full-time job at home, he means Jim _____.
    A

    makes shoes in his home

    B

    does his extra work at night

    C

    does his own car and home repairs

    D

    keeps house and looks after his children


    正确答案: A
    解析:

  • 第23题:

    单选题
    The ()has a water damp ring.
    A

    purifier

    B

    oil/water separator

    C

    incinerator

    D

    distiller


    正确答案: C
    解析: 暂无解析

  • 第24题:

    单选题
    If an operating auxiliary boiler has a water pH reading of 7, you should ().
    A

    bottom blow the boiler

    B

    treat the water with caustic soda

    C

    treat the water with chemical scavengers

    D

    reduce the water alkalinity to recommended readings


    正确答案: C
    解析: 暂无解析