单选题Which of the following is true about the U.S. Navy underwater listening net-work?A It is now partly accessible to civilian scientists.B It has been replaced by a more advanced system.C It became useless to the military after the cold war.D It is indisp

题目
单选题
Which of the following is true about the U.S. Navy underwater listening net-work?
A

It is now partly accessible to civilian scientists.

B

It has been replaced by a more advanced system.

C

It became useless to the military after the cold war.

D

It is indispensable in protecting endangered species.

相似考题

1.187. It is hard to track the blue whale, the ocean’s largest creature, which has almost been killed off by commercial whaling and is now listed as an endangered species. Attaching radio devices to it is difficult, and visual sightings are too unreliable to give real insight into its behavior. So biologists were delighted early this year when, with the help of the Navy, they were able to track a particular blue whale for 43 days, monitoring its sounds. This was possible because of the Navy’s formerly top-secret system of underwater listening devices spanning the oceans. Tracking whales is but one example of all exciting new world just opening to civilian scientists after the cold war as the Navy starts to share and partly uncover its global network of underwater listening system built over the decades to track the ships of potential enemies. Earth scientists announced at a news conference recently that they had used the system for closely monitoring a deep-sea volcanic eruption for the first time and that they plan similar studies. Other scientists have proposed to use the network for tracking ocean currents and measuring changes in ocean and global temperatures. The speed of sound in water is roughly one mile a second, slower than through land but faster than through air. What is most important, different layers of ocean water can act as channels for sounds, focusing them in the same way a stethoscope (听诊器) does when it carries faint noises from a patient’s chest to a doctor’s ear. This focusing is the main reason that even relatively weak sounds in the ocean, especially low-frequency ones, can often travel thousands of miles. [共5题](1) The passage is chiefly about ________.(A) an effort to protect an endangered marine species(B) the exposure of a US Navy top-secret weapon(C) the civilian use of a military detection system(D) a new way to look into the behavior. of blue whales(2) The underwater listening system was originally designed ________.(A) to monitor deep-sea volcanic eruptions(B) to replace the global radio communications network(C) to study the movement of ocean currents(D) to trace and locate enemy vessels(3) The deep-sea listening system makes use of ________.(A) the unique property of layers of ocean water in transmitting sound(B) the capability of sound to travel at hligh speed(C) low-frequency sounds travelling across different layers of water(D) the sophisticated technology of focusing sounds under water(4) It can be inferred from the passage that ________.(A) blue whales are no longer endangered with the use of the new listening system(B) new radio devices should be developed for tracking the endangered blue whales(C) military technology has great potential in civilian use(D) opinions differ as to whether civilian scientists should be allowed to use military technology(5) Which of the following is true about the US Navy underwater listening network?(A) It has been replaced by a more advanced system.(B) It is now partly accessible to civilian scientists.(C) It became useless to the military after the cold war.(D) It is indispensable in protecting endangered species.

2.Which of the following statements concerning frontal movements is TRUE ________．A.The temperature rises after a cold front passesB.The barometric pressure rises when a warm front passesC.A cold front generally passes faster than a warm frontD.A warm front usually has more violent weather associated with it than a cold front

3.Which of the following is true of the squirrel bridge?__________A.It was replaced by a longer one B.It was built from wood and metal C.it was rebuilt after years of use D.It was designed by Bill Hutch

4.Which of the following could BEST be used to recover a failed RAID 1 disk after it has been replaced?()A. Tape restore utilitiesB. Imaging utilitiesC. Partitioning utilitiesD. Array management utilities

更多“单选题Which of the following is true about the U.S. Navy underwater listening net-work?A It is now partly accessible to civilian scientists.B It has been replaced by a more advanced system.C It became useless to the military after the cold war.D It is indisp”相关问题

  • 第1题：

    Which of the following is TRUE?

    A.The more Jack explained, the angrier the couple got
    B.Jack wanted to show his feelings through words after his experience
    C.The manager went back to the table and apologized to the couple
    D.From this experience, Jack learned more about American culture

    答案：D
    解析：
    根据第二段最后一句“After the couple heard my reason，they understood that the problemwas caused by cultural differences，so they laughed and were no longer angry”可知A选项不对；根据文章最后一句“but now I don’t show my feelings through words”可知B选项不对；根据第二段中的“I tIlen waked back to the
    table and apologized to the wife”可知C选项也不对，故正确答案为D。

  • 第2题：

    A user has been having difficulty with their PC. Which of the following is the BEST response atechnician should give when a user asks for the definition of a particular bluescreen message?（）

    • A、“It is a message that informs the technician of what hardware needs to be replaced.”
    • B、“A bluescreen message is just another name for an error.”
    • C、“It provides the technician with more information about the problem.”
    • D、“It is a complex message that is very difficult to explain to those who are not familiar with computers.”

    正确答案:C

  • 第3题：

    Which of the following are attributes of a hardware-based RAID controller？（）

    • A、Backs up data
    • B、Less expensive than software RAID
    • C、Vendor neutral implementation
    • D、Accessible through a BIOS interface
    • E、More host CPU usage than software RAID
    • F、Accessible through a system utility after the OS has been loaded
    • G、May retain data in the event of a power outage

    正确答案:D,F,G

  • 第4题：

    单选题
    Which is NOT true about Sudoku?
    A

    Sudoku wasn’t invented in Japan.

    B

    It was The Times that first printed Sudoku in the newspaper.

    C

    Each grid has more than one number.

    D

    It became popular around the world in 2005.


    正确答案： B
    解析：
    细节理解题。根据图示可知，C项错误，每个格只有一个数字，而不是比一个数字多。

  • 第5题：

    单选题
    It can be inferred from the passage that ______.
    A

    new radio devices should be developed for tracking the endangered blue whales

    B

    blue whales are no longer endangered with the use of the new listening system

    C

    opinions differ as to whether civilian scientists should be allowed to use military technology

    D

    military technology has great potential in civilian use


    正确答案： A
    解析：
    推论题。根据美国水下声音监控系统对深海火山，洋流变化，全球温度等方面的民用科学的研究，说明军事技术转为民用更具有潜力。所以D为答案。

  • 第6题：

    单选题
    Which of the following statements is NOT true according to the passage?
    A

    The women having children show a rise in cold infections than those without children.

    B

    People with low income will surely more colds than people with high income.

    C

    Juniors are easier to have colds than seniors.

    D

    It has not been proved scientifically that poor nutrition affects susceptibility to colds.


    正确答案： D
    解析：
    是非题。第三段主要描述低收入的人比高收入的人易患感冒，原因可能是住宿条件不好和营养跟不上，但选项B（低收入者肯定比高收入者更经常患感冒）说法过于绝对，因此不符合文意。

  • 第7题：

    单选题
    Which of the following could BEST be used to recover a failed RAID 1 disk after it has been replaced?（）
    A

    Tape restore utilities

    B

    Imaging utilities

    C

    Partitioning utilities

    D

    Array management utilities


    正确答案： B
    解析： 暂无解析

  • 第8题：

    单选题
    A user has been having difficulty with their PC. Which of the following is the BEST response atechnician should give when a user asks for the definition of a particular bluescreen message?（）
    A

    “It is a message that informs the technician of what hardware needs to be replaced.”

    B

    “A bluescreen message is just another name for an error.”

    C

    “It provides the technician with more information about the problem.”

    D

    “It is a complex message that is very difficult to explain to those who are not familiar with computers.”


    正确答案： A
    解析： 暂无解析

  • 第9题：

    单选题
    According to the passage, which of the following is NOT true about Andry Rajoelina?
    A

    He represents Antananarivo’s poor urban residents.

    B

    He is not accepted by most countries.

    C

    He was mayor of Antananarivo.

    D

    He has been a famous orator throughout Madagascar.


    正确答案： C
    解析：
    题目问的是：根据文章，下列关于安德里拉乔利纳的描述哪一项是错误的？文章第6段提到“The former mayor of Antananarivo is little known in the provinces.”,说明他作为前塔那那利佛市长，鲜有人知。D项说他已经是响彻整个马达加斯加的著名演说家，与原文不符。故选D。

  • 第10题：

    单选题
    Which of the following is true about the U.S. Navy underwater listening net-work?
    A

    It is now partly accessible to civilian scientists.

    B

    It has been replaced by a more advanced system.

    C

    It became useless to the military after the cold war.

    D

    It is indispensable in protecting endangered species.


    正确答案： D
    解析：
    细节题。美国海军水下声控系统部分地应用于民用科学家，故选A项。

  • 第11题：

    单选题
    The passage is chiefly about ______.
    A

    an effort to protect an endangered marine species

    B

    the civilian use of a military detection system

    C

    the exposure of a U.S. Navy top-secret weapon

    D

    a new way to look into the behavior of blue whales


    正确答案： C
    解析：
    主旨题。本文主要叙述在冷战结束后，民用科学家首次使用在过去几十年建立起来的追踪潜在敌人军舰的水下监听系统网络，进行民用科研。对蓝鲸追踪仅仅是个引导，本文既不是对蓝鲸追踪法的研究也不是对海军秘密的揭露，而主要说明美国海军水下声音监测装置为民用科学家服务的问题，B项与文章内容相同。

  • 第12题：

    单选题
    Which of the following commands will repair boot sector blocks after a virus has been removed?（）
    A

    chkdsk

    B

    format

    C

    fixmbr

    D

    sfc


    正确答案： A
    解析： 暂无解析

  • 第13题：

    Which of the following commands will repair boot sector blocks after a virus has been removed?（）

    • A、chkdsk
    • B、format
    • C、fixmbr
    • D、sfc

    正确答案:C

  • 第14题：

    A floppy drive is replaced in a computer and now when the computer is turned on the floppy drive light is constantly lit. Which of the following is the MOST likely cause?（）

    • A、The power supply has failed.
    • B、The drive cable is connected backwards.
    • C、The floppy drive has failed.
    • D、The proper drivers have not been loaded.

    正确答案:B

  • 第15题：

    Which of the following could BEST be used to recover a failed RAID 1 disk after it has been replaced？（）

    • A、 Tape restore utilities
    • B、 Imaging utilities
    • C、 Partitioning utilities
    • D、 Array management utilities

    正确答案:D

  • 第16题：

    单选题
    A floppy drive is replaced in a computer and now when the computer is turned on the floppy drive light is constantly lit. Which of the following is the MOST likely cause?（）
    A

    The power supply has failed.

    B

    The drive cable is connected backwards.

    C

    The floppy drive has failed.

    D

    The proper drivers have not been loaded.


    正确答案： D
    解析： 暂无解析

  • 第17题：

    单选题
    Which of the following statements is true about Japan?
    A

    It has a very short life-expectancy on average.

    B

    It has the lowest infant mortality rate in the world.

    C

    Young people want to have more children.

    D

    The number of young people fit for work is decreasing.


    正确答案： D
    解析：
    从录音中提到的“a diminishing workforce paying for a rising number of pensioners”，可知日本的劳动力变得越来越少。diminishing逐渐减少的；衰减的。pensioner领养老金者；领取抚恤金者。
    【录音原文】
    Japan has the highest life-expectancy in the world, one of the lowest birth rates and accepts few immigrants, leaving a diminishing workforce paying for a rising number of pensioners.

  • 第18题：

    单选题
    Which of the following could BEST be used to recover a failed RAID 1 disk after it has been replaced？（）
    A

     Tape restore utilities

    B

     Imaging utilities

    C

     Partitioning utilities

    D

     Array management utilities


    正确答案： D
    解析： 暂无解析

  • 第19题：

    单选题
    Which of the following is NOT true?
    A

    The mental tedium will not exist in the end.

    B

    Hand-loom weaver is the thing of the past.

    C

    Automation is an out-of-date topic today.

    D

    Physical burden in the factory has already been replaced.


    正确答案： C
    解析：
    第三段第一句提到“I come back to the haunting theme of automation.”(回到萦绕心头已久的主题——自动化)，由此可见自动化这个主题在今天并没有过时，所以C项的描述错误，故答案为C。

  • 第20题：

    单选题
    Which of the following statements concerning frontal movements is TRUE（）.
    A

    The temperature rises after a cold front passes

    B

    The barometric pressure rises when a warm front passes

    C

    A cold front generally passes faster than a warm front

    D

    A warm front usually has more violent weather associated with it than a cold front


    正确答案： A
    解析： 暂无解析

  • 第21题：

    单选题
    Which of the following statements is true about Sony?
    A

    Sony is making a new effort for more technological and marketing innovations.

    B

    Its revenue and profits have improved recently.

    C

    Sony is trying to make friends with Microsoft, another player in this industry.

    D

    Microsoft has been making computer games for the last 20 years.


    正确答案： C
    解析：
    录音开头便描述到“市场领导者Sony正在changing the technological and business rules”，可见Sony正在进行科技和市场创新，与选项A表达意思相一致。
    【录音原文】
    Sony, the market leader, is changing the technological and business rules that have defined this cut-throat industry for two decades. By doing so, it hopes to both to improve its fortunes—earlier this year the company admitted that its revenues and profits had unexpectedly plunged—and to fend off a challenge from Microsoft, which launched its first games console, the Xbox, in 2001.

  • 第22题：

    单选题
    Which of the following is true about the Japanese economy, according to the passage?
    A

    It will slide into deflation very soon.

    B

    It has been affected by economic recession for almost ten years.

    C

    It has maintained a sustained economic recovery for the past decade.

    D

    It will propose to attract more American businesses to invest in key industries.


    正确答案： C
    解析：
    事实细节的找寻和判断。题干中的关键词为Japan，从而可定位到录音最后的“Japan, in or close to recession for much of the past decade…”，可知，日本在过去的十年几乎都遭受了经济衰退。因此，选项B与录音中相关内容相符。
    【录音原文】
    Of course, concerns about deflation and slow growth are closely interlinked. If the American economy were to slide into deflation, with prices actually falling, hopes for a sustained economic recovery would be dashed. Once prices start to fall, consumers and businesses postpone all but the most essential purchases. What is the point of buying something now if it will be cheaper in a few months’ time? It is easy to see how quickly the economy could slide back towards recession. Japan, in or close to recession for much of the past decade, is now experiencing its fourth consecutive year of falling prices.

  • 第23题：

    单选题
    Which of the following statements is NOT true? _____
    A

    There are both advantages and disadvantages in using a word professor.

    B

    The British companies care much for the health of the people using word processors.

    C

    The technology in the field of computers has been greatly advanced over the last ten years.

    D

    Using world processors, secretaries can get more time to do more interesting work for their bosses.


    正确答案： A
    解析：
    根据第三段最后一句“Safety screens to put over a VDU have been invented but few companies in England bother to buy them.”可知，安全的屏幕已经发明出来，但是只有很少公司购买，说明很多公司为节省成本不舍投入，不关心员工的健康。

  • 第24题：

    单选题
    Which of the following is true?
    A

    Anne was lazy, sad and complained all day

    B

    The book is mainly about Anne’s school life

    C

    Anne loved life though she was in difficult time

    D

    The book has been put into nearly 30 languages


    正确答案： D
    解析：
    由原文第三段中的“In her diary, Anne wrote down her thoughts, her feelings, her hopes and her dreams for the future.”以及“I feel the beauty of nature and the goodness of the people around me”等内容可推断出生活条件虽然艰辛，但Anne仍然热爱生活。故正确答案为C项。A项表达的意思与原文意思相反，原文中第三段说到她对生活和未来仍然充满希望。B项错误，原文第三段指出，Anne的日记是关于她在纳粹集中营的生活的感悟，而不是关于她的学校生活的。原文第三段提到“It has been put into over 30 languages”，即她的日记被翻译成30多种语言，而不是D项中描述的“近30种语言”。故D项也错误。

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