Satellites were launched () low orbit for weather and military applications.A、onB、aroundC、inD、with

题目

Satellites were launched () low orbit for weather and military applications.

  • A、on
  • B、around
  • C、in
  • D、with

相似考题
更多“Satellites were launched () low ”相关问题
  • 第1题:

    Parts were ordered only as needed, keeping () and overhead low.

    A、inventory

    B、sacrifice

    C、dripping

    D、clear-cut


    参考答案:A

  • 第2题:

    Nother matter how low you consider yourself ,there is always someone _________you wishing

    They were that high.

    A. getting rid of

    B. getting along with

    C. looking up to

    D. looking down upon


    正确答案:C

  • 第3题:

    根据下列材料请回答 31~35 题:

    A

    Now satellites are helping to forecast the weather.They are in space,and they can reach any part of the world.The satellites take pictures of the atmosphere(大气),because this is where the weather form.They send these pictures to the weather stations.So meteorologists(气象学家)can see the weather of any part of the world.From the pictures,the scientists can often say how the weather will change.

    Today,nearly five hundred weather stations in sixty countries receive satellite pictures.When they receive new pictures,the meteorologists compare them with earlier ones.Perhaps they may find that the clouds have changed during the last few hours.This may mean that the weather on the ground may soon change,too.In their next weather forecast,the meteorologists can say this.

    So the weather satellites are a great help to the meteorologists.Before satellites were invented,the scientists could forecast the weather for about 24 0r 48 hours.Now they can make good forecasts for three or five days.Soon,perhaps,they may be able to forecast the weather for a week or more ahead.

    第 31 题 Satellites travel______.

    A.in space

    B.in the atmosphere

    C.above the ground

    D.above space


    正确答案:A
    细节题,根据第一段的“They are in space”知道答案选A。

  • 第4题:

    Satellites were launched()low orbit for weather and military applications.

    A.on B.around C.in D.with


    正确答案: C

  • 第5题:

    The GPS system was designed for ______ satellites.

    A.3

    B.12

    C.18

    D.24


    正确答案:D

  • 第6题:

    Which of the following is a diplexer used for?()

    • A、Allows two satellite tuners to use the same dish.
    • B、Connects the low noise block down converter (LNB) to the multi-switch.
    • C、Combines satellite and over the air (OTA) signals.
    • D、Allows one LNB to use two satellites.

    正确答案:C

  • 第7题:

    单选题
    If a davit-launched liferaft aboard a ship cannot be launched because of damage to the davit,you should().
    A

    inflate the liferaft on deck

    B

    roll the liferaft over the side

    C

    go to another liferaft station

    D

    get a saw and cut the liferaft free


    正确答案: D
    解析: 暂无解析

  • 第8题:

    单选题
    If a refrigeration crankcase compressor were short cycling on the low pressure cutout switch, the cause might be that the ().
    A

    system was overcharged with refrigerant

    B

    system was low on refrigerant

    C

    suction valves were leaking slightly

    D

    relief valve was leaking slightly


    正确答案: D
    解析: 暂无解析

  • 第9题:

    单选题
    The receiver uses()satellites to compute latitude,longitude,altitude,and velocity.
    A

    one

    B

    two

    C

    three

    D

    four


    正确答案: C
    解析: 暂无解析

  • 第10题:

    单选题
    Passage3        Questions 11 to 15 are based on the following passage.        Many of the most damaging and life threatening types of weather, such as torrential rains and severe thunderstorms, begin quickly, strike suddenly, and disappear rapidly, destroying small regions while leaving neighboring areas untouched. (79) Conventional(普通) computer models of the atmosphere have limited value in predicting short-lived local storms because the available weather data are generally not detailed enough to allow computers to see clearly the small atmospheric changes that come before these storms.In most nations, for example, weather-balloon observations are taken just once ever3r twelve hours at location typically separated by hundreds of miles. With such limited data, conventional forecasting models do a much better job predicting general weather conditions over large regions than they do forecasting specific local events.      Until recently, the observation-intensive approach needed for accurate, very short range forecasts, or nowcasts, was impracticable. The cost of equipping and operating many thousands of conventional weather stations was extremely high, and the difficulties involved in rapidly collecting and processing the raw weather data from such a network were beyond overcoming.Fortunately, scientific and technological advance have overcome most of these problems. Radar systems, automated weather instruments, and satellites are all capable of making detailed, nearly continuous observations over large regions at a relatively low cost. Communication satellites can transmit data around the world cheaply and immediately, and modern computers can quickly compile and analyze this large volume of weather information. (80) Meteorologists(气象学家)and computer scientists now work together to design computer programs and video equipment capable of transforming r.aw weather data into words, symbols, and vivid graphic displays that forecasters can interpret easily and quickly. As meteorologists have begun using these new technologies in weather forecasting offices, nowcasting is becoming a reality.13 Nowcasts used to be impracticable because______.
    A

    there were no conventional computers

    B

    the cost of the equipping and operating was sky-high

    C

    there were no difficulties in data processing

    D

    there were not enough meteorologists


    正确答案: A
    解析:

  • 第11题:

    单选题
    Geostationary satellites are the artificial satellites which().
    A

    always move slowly

    B

    are in one place only

    C

    sometime move sometime don‟t move

    D

    are synchronizing with the movement of the earth


    正确答案: A
    解析: 暂无解析

  • 第12题:

    单选题
    People waited outside Apple stores early, because ______.
    A

    they could get a gift when the store opened

    B

    they wanted to own the iPad as early as they can

    C

    the price of the iPad was low at first

    D

    there were a few iPads on sale


    正确答案: B
    解析:
    【文章大意】本文是一篇新闻报道。文章主要介绍了iPad平板电脑出售的相关情况。
    细节理解题。第一段倒数第二句提到“…hoping to be the first to get one. ”可知,人们早早地等在Apple商店外面,是为了尽可能早地拥有iPad。

  • 第13题:

    In their hiding place, the criminals lived in fear(). They knew the police were searching high and low for them.

    A、again and again

    B、all the time


    参考答案:B

  • 第14题:

    Wheat prices were generally low in the autumn, so farmers could not wait for markets to improve.(语法上正确与否)()

    此题为判断题(对,错)。


    答案:错

  • 第15题:

    Why do we use the weather satellites to take pictures of the atmosphere?Because______.

    A.the weather satellites can do it easily

    B.clouds form. there

    C.the weather forms there

    D.the pictures can forecast the weather


    正确答案:C
    细节题,根据第一段“because this is where the weather form”知道答案选C。

  • 第16题:

    The discount houses were first established in that period of time ________ people‘s purchasing power was low. A. which B. that C. when D. where


    正确答案:C

  • 第17题:

    The Moon and most artificial satellites travel around the Earth in elliptical paths

    A: waves
    B: orbits
    C: voyages
    D: flights

    答案:B
    解析:
    句意:月亮和人造卫星都以椭圆轨道绕地球旋转。画线单词path意为“路径”。 wave意为“波浪”;orbit意为“轨道”;voyage意为“航海”;flight意为“航班”。根据画线单词意思,只有orbit与其意义相近,可进行替换。因此B项正确。

  • 第18题:

    单选题
    According to the passage, cell phones were launched _____.
    A

    in the late 1970s

    B

    between 1980 and 1985

    C

    in the late 1980s

    D

    in the early 1990s


    正确答案: B
    解析:

  • 第19题:

    单选题
    If a refrigeration compressor were short cycling on the low pressure cutout switch, the probable cause for this might be the ().
    A

    system was overcharged with refrigerant

    B

    high pressure switch was improperly adjusted

    C

    expansion valve strainers were fouled

    D

    suction valves were leaking slightly


    正确答案: B
    解析: 暂无解析

  • 第20题:

    单选题
    Which of the italicized parts functions as a complement(补语)?
    A

    We were greatly encouraged by the news of China’s having launched another man-made satellite.

    B

    His wish is everyone’s having a good time.

    C

    I saw an old man getting on the bus.

    D

    The smiling boy needs a pen bought by his mother


    正确答案: C
    解析:
    考查动名词短语在句中所作的句子成分。A选项中的斜体部分在句中做the news的同位语;B选项中的斜体部分在句中做表语;C选项中的斜体部分在句中做宾语补足语;D选项中的斜体部分在句中做定语;故选C。

  • 第21题:

    单选题
    Satellites were launched () low orbit for weather and military applications.
    A

    on

    B

    around

    C

    in

    D

    with


    正确答案: B
    解析: 本题翻译为:卫星被发射至低轨道上,以用于天气和军事应用。本题考查“lanuch”的用法。Launchon表示“开始,着手”,本题中发射至低轨道,并没有开始的意思。Launch与around、in以及with并不是搭配词组连接,需要根据题意来选择介词。本题是卫星被发射至低轨道上,而并不是在低轨道的周围(around),也不是用(with)低轨道来发射,因此选C。

  • 第22题:

    填空题
    Animal welfare was a low-rated trust factor partly because consumers were reluctant to pay extra money for “animal friendly” products.____

    正确答案: G
    解析:
    由题干中关键词“Animal welfare和a low-rated trust factor”可定位至G段。本段讲到,消费者不愿付更多的钱购买“动物友好型”的产品,故匹配段落为G段。

  • 第23题:

    单选题
    Which statement about satellite navigation is TRUE? ()
    A

    While a fix can be generated by signals received from two satellites,three satellites are necessary for reliable accuracy

    B

    The satellites are in equatorial orbits around the earth about 60°of longitude apart

    C

    The satellite navigation system determines a fix by measuring the doppler shift of the radio signals from the satellite

    D

    The ship's receiver cannot begin processing data until the antenna locks onto the satellite and starts continuous tracking


    正确答案: C
    解析: 暂无解析