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单选题But the fragile ecosystem could be hurt by a plan to dredge more than 23 miles of river at the delta’s southern end.A flimsy B optical C marginal D vacant

题目
单选题
But the fragile ecosystem could be hurt by a plan to dredge more than 23 miles of river at the delta’s southern end.
A

flimsy

B

optical

C

marginal

D

vacant

相似考题

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4.157 Filling vacant positions by recruiting within the organizationA. Is exempt from equal employment opportunity lawsB. Is less expensive than recruiting externallyC. Can help provide new and innovative ideas to the organizationD. Is more time consuming than recruiting externallyE. A and B

更多“单选题But the fragile ecosystem could be hurt by a plan to dredge more than 23 miles of river at the delta’s southern end.A flimsy B optical C marginal D vacant”相关问题

  • 第1题：

    We prefer to discuss the plan fully____ put it in practice hurriedly.A. other than B. more than C. rather than D. better than


    C     rather than 而不是

  • 第2题：

    The New Madrid fault is______.

    A) a horizontal fault

    B) a vertical fault

    C) a more serious fault than the San Andreas fault

    D) responsible for forming the Mississippi River


    正确答案：B
    答案：B
    [试题分析]细节了解题。
    [详细解答]本题答案可以直接从第五段第一句话The New Madrid fault，on the other hand，is a vertical fault看出。因此B为正确答案。

  • 第3题：

    Except as provided for otherwise，an oil tanker might discharge certain amount at certain rate of oil or oily mixtures into sea when ______.

    A.the tanker is within 50 nautical miles from the nearest land

    B.the tanker is no more than 50 nautical miles from the nearest land

    C.the tanker is more than 50 nautical miles from the nearest land

    D.the tanker is not more than 50 nautical miles from the nearest land


    正确答案：C

  • 第4题：

    What could result in an incorrect oxygen concentration reading on the oxygen indicator ________．

    A.Exposure to carbon dioxide for no more than 1 minute

    B.Exposure to carbon dioxide for more than 10 minutes

    C.Exposure to a very low concentration of sulfur dioxide for no more than 2 minutes

    D.None of the above


    正确答案：B

  • 第5题：

    多选题
    If 4 more than twice n is a negative number and 6 more than n is a positive number, which of the following numbers could be the value of n? (Select all such numbers.)
    A

    -5

    B

    4

    C

    -3


    正确答案： B,A
    解析：
    根据题目中的已知条件可得，4+2n<0，6+n>0，把各个选项分别代入两个不等式中检验，同时符合两个不等式可得到n可以等于-5，-4，-3，故正确答案为AC。

  • 第6题：

    单选题
    I could not persuade him to accept it,（）make him see the importance of it.
    A

    if only I could not

    B

    or I could not

    C

    not more than I could

    D

    nor could I


    正确答案： C
    解析： 暂无解析

  • 第7题：

    单选题
    Except as provided for otherwise，an oil tanker might discharge certain amount at certain rate of oil or oily mixtures into sea when（）.
    A

    the tanker is within 50 nautical miles from the nearest land

    B

    the tanker is no more than 50 nautical miles from the nearest land

    C

    the tanker is more than 50 nautical miles from the nearest land

    D

    the tanker is not more than 50 nautical miles from the nearest land


    正确答案： A
    解析： 暂无解析

  • 第8题：

    单选题
    The new bus service will run _____.
    A

    on morning journeys to school only

    B

    in connection with an existing service

    C

    only for children living more than three miles away

    D

    only in wet weather


    正确答案： C
    解析：
    把第三段“The children live just within the three-mile limit”和第五段“there is already an agreement with the bus company for a bus to take children who live further away to Impington”结合起来考虑，B项符合题意。

  • 第9题：

    问答题
    Holland is a tiny country. It has no more than 200 miles long and just　　　 1．____over 150 miles wide. Yet in the 1600s, this small nation in the North 　　　　　2．____Sea was a great sea power. Her more than 10,000 ships went to all part 　　　　 3．____of the world. Today there are many ways for passengers and with cargo 　　　　　4．____to travel. But once, if you have to go to a country across the ocean or 　　　　5．____send a cargo over the seas, you had only one choice: the sailing ship.In the 1600s, Dutch made a ship called a flyboat. It was a slow,　　　　　　　　6．____clumsy boat, but it could carry a lot of cargo. Since the Dutchcould carry most cargo, they could do more trading. Trading 　　　　　　　　  　7．____brought against the building of new colonies. It was not long before 　　　　　 8．____there were Dutch colonies in the Americas, in Africa, in the WestIndia, and in the East India. The great city of the New York began 　　　　　　 9．____as the Dutch colony New Amsterdam. The Dutch used the seas tobecome a great trading nation. They also used the seas to become agreat power in the world. Dutch ships helped Holland ruled other 　　　　　　　 10．____lands for more than 200 years.

    正确答案： 1. has→is 句子是系表结构,此处缺少系动词is。
    2.√
    3. part→parts 这里指到达世界的各个地方,因此用复数parts。
    4. with 此处and连接两个并列的介词宾语,cargo前不需加with。
    5. have→had 主句为过去时态,故从句与其保持一致,也用过去时。
    6. 1600s, ∧ Dutch→a 此处的Dutch表示“荷兰人”,表示泛指的一个荷兰人,前面应加不定冠词a。
    7. most→more 这里讲到这艘名为flyboat的船可以搭载很多货物,后面提到“they could do more trading”,由此可以判断出,是因为它能搭载更多货物,所以它能做更多生意,用more。
    8. against→about 从“It was not long before there were Dutch colonies in the Americas, in Africa……”可知贸易的发展带来了新的殖民地的产生,因此用bring about。bring against表示“对…采取…的行动”。
    9. the 在城市、国家、大学、人名、大多数地名等专有名词前,不加冠词。
    10. ruled→rule help sb. do为固定用法,表示“帮助某人做某事”。
    解析： 暂无解析

  • 第10题：

    单选题
    A SOLAS passenger ship safety certificate is required on all（）.
    A

    T-Boats carrying more than 49 passengers for hire

    B

    T-Boats that carry more than 12 passengers on an international voyage

    C

    T-Boats carrying more than 150 passengers for hire

    D

    large excursion vessels on lakes，bays，sounds，and river routes


    正确答案： D
    解析： 暂无解析

  • 第11题：

    单选题
    The passage tells us that _____.
    A

    HIV was found more than two years earlier than AIDS was identified

    B

    people know a little more about HIV than about most other viruses

    C

    AIDS continues to rage more wildly in Africa than in Asia

    D

    HIV will mainly affect the poor and minority groups in the U.S.


    正确答案： B
    解析：
    倒数第二段倒数第三句作者说新的艾滋病毒感染将主要发生在下层社会，少数群体的感染率将是前者的10倍。这里minority主要指美国黑人和说西班牙语的移民。

  • 第12题：

    单选题
    Which of the following statements is true to women athletes?
    A

    They are more likely to get hurt than males in football.

    B

    They suffer 240% more concussions than male players in basketball.

    C

    They run 40% higher risks than males in sports.

    D

    They are more competitive than males in sports played by both sexes.


    正确答案： D
    解析：
    录音中指出某些体育运动中，女运动员比男运动员更容易受伤。其中提到根据美国Journal of Athletic Training的一项研究，在高中篮球队“female concussions were nearly 240% higher”，表明女篮球运动员脑震荡的几率比男篮球运动员高出240%。因此选项B正确。
    【录音原文】
    These days, female sports are more competitive than they have ever been. And with higher stakes have come more hazardous consequences. Boys who play football are still more likely to suffer concussions than any athletes, but in some sports played by both sexes, girls actually run a higher risk of getting hurt. According to a new study in the Journal of Athletic Training, U.S. female high school soccer athletes suffered almost 40% more concussions than males did. In high school basketball, female concussions were nearly 240% higher. Female college athletes who play soccer, basketball, softball and hockey also bear higher concussion risks than their male counterparts.

  • 第13题：

    ( )more information, they could make the plan better than it is now.

    A、Having given

    B、If giving

    C、Given

    D、To be given


    参考答案：C

  • 第14题：

    Dense Wavelength Division Multiplexing (DWDM) is an important innovation in optical networks.Which two descriptions best define DWDM?()

    A. optical technology for transmitting up to 32 channels over multiple fiber strands

    B. optical technology for transmitting up to 16 channels over multiple fiber strands

    C. a WDM system that is compatible with EDFA technology

    D. a technology for transmitting more closely packed optical signals using more sophisticated transceiver designs than CWDM .


    参考答案：C, D

  • 第15题：

    A SOLAS passenger ship safety certificate is required on all ______.

    A.T-Boats carrying more than 49 passengers for hire

    B.T-Boats that carry more than 12 passengers on an international voyage

    C.T-Boats carrying more than 150 passengers for hire

    D.large excursion vessels on lakes，bays，sounds，and river routes


    正确答案：B

  • 第16题：

    What two descriptions best define DWDM？ （）

    • A、 a WDM system that is compatible with EDFA technology
    • B、 an optical technology for transmitting up to 16 channels over multiple fiber strands
    • C、 an optical technology for transmitting up to 32 channels over multiple fiber strands
    • D、 a technology for transmitting multiple optical signals using less sophisticated transceiver designthen CWDM
    • E、 a technology for transmitting more closely packed optical signals using more sophisticatedtransceiver designs than CWDM

    正确答案:A,E

  • 第17题：

    单选题
    Since 1960, the fast-growing town of Hotstone, Arizona, has drawn water from the Gray River, which feeds Lake Mudfish. If the town’s water use continues to grow at its present rate, in about 20 years the water level of Lake Mudfish will inevitably decrease to the point that it can no longer support its biologically fragile population of fish.　 The prediction above is based on which of the following assumptions?
    A

    As the town’s water requirements grow, it will not be able to meet those requirements by drawing on water sources other than the Gray River.

    B

    Since 1960, the lake’s population of fish has become more biologically fragile.

    C

    The amount of water that the lake loses to evaporation each year will increase over the next two decades.

    D

    There are multiple sources of water besides the Gray River that feed into Lake Mudfish.

    E

    The town of Hotstone will be able to reverse its trend of increasing water use if it implements an aggressive water conservation program.


    正确答案： B
    解析：
    由文段的内容可知，Mudfish湖之所以会干涸是因为Gray River的水都被用来提供给周边的Hotstone和Arizona，所以可知本题应选A项。

  • 第18题：

    单选题
    The gas reserves in the far west and off the eastern and southern coasts of China ______.
    A

    have been tapped for more than 50 years.

    B

    have an output that is failing.

    C

    are just beginning to be tapped.

    D

    are not nearly enough to provide for the nation’s fuel consumption.


    正确答案： C
    解析：
    录音中指出在“Xinjiang in the far west and off the eastern and southern coasts”，中国刚刚开始“tap some of its largest gas reserves”，其中tap意为“开发，发掘”，因此选C。
    【录音原文】
    China’s biggest oilfields such as Daqing, have been in production for half a century or more and their output is falling. By contrast, the country is just beginning to tap some of its largest gas reserves in Xinjiang in the far west and off the eastern and southern coasts.

  • 第19题：

    单选题
    When are you allowed to throw plastic garbage overboard?（）
    A

    Being mroe than 25 miles from shore

    B

    Only at night when it‟s dark

    C

    Being more than 6 miles from shore

    D

    Never


    正确答案： D
    解析： 暂无解析

  • 第20题：

    单选题
    During the Clinton presidency, the U.S. enjoyed more than any time in its history peace and economic well being.
    A

    the U.S. enjoyed more than any time in its history peace and economic well being

    B

    the U.S. enjoying more than any other time in its history peace and economic well being

    C

    more peace and economic well being was enjoyed by the U.S. than any other time

    D

    economic peace and well being was enjoyed by the U.S. more so than any other ~ time in the country’s history

    E

    the U.S. enjoyed more peace and economic well being than at any other time in its history


    正确答案： C
    解析：
    原句措辞不恰当。E纠正了这个错误。

  • 第21题：

    单选题
    The sentence “Nature doesn’t do bailouts.” in para 2 means ______.
    A

    governments should spend much more on environmental crisis

    B

    nature is fragile and, once shifts, hard to shift back

    C

    environmentalists encourage a larger share of the stimulus package

    D

    nature can give us more than banks


    正确答案： C
    解析：
    题目问的是：第2段中的“大自然不能紧急救援”意味着什么？与银行不同，大自然的平衡一旦遭到破坏，将不可能被营救。故选B。

  • 第22题：

    单选题
    Which of the following is NOT Wal-Mart’s future plan?
    A

    Reducing emissions of greenhouse-gas in current stores.

    B

    Preparing more fuels for the fleet of trucks than before.

    C

    Giving preferential treatment to certain factories.

    D

    Establishing newly efficient stores in different places.


    正确答案： D
    解析：
    细节题。根据题干关键词可定位到文章第三段。该段第二句提到，Lee预计到2015年沃尔玛的卡车耗油量将减少一半，而增加汽车燃油量明显是和绿色行动相悖的，故选项B错误。由该段第二句可知，选项A、D均在计划之内。而由第四句可知C项也正确。故本题答案为B项。

  • 第23题：

    单选题
    Concerning the incinerator’s operation, which of the following is not correct?（）
    A

    Scavenging time should be more 30 seconds before igniting

    B

    The temperature of sludge tank is 80~100℃

    C

    First igniting the incinerator with diesel oil, when the temperature of health is about 600℃, the sludge oil drawn in

    D

    The ash can be dumped into sea when the distance is more than 3 miles from land


    正确答案： B
    解析： 暂无解析

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