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At least how many tests were carried out by the scientists referred to in this passage A.Three B.Two C.Only one D.No one knows

题目
At least how many tests were carried out by the scientists referred to in this passage

A.Three
B.Two
C.Only one
D.No one knows
相似考题

1.How many people were there in Anna's family?________________________.

2.Scientists have many theories about how the universe ___ into being.A. cameB. was comingC. had comeD. would come

3.Preventive maintenance______.A.should not be carried out during the watchesB.can only be carried out in portC.is a kind of maintenances carried out prior to the occurrenceD.is a kind of maintenances carried out after the occurrence

4.There were many talented actors out there just waiting ______ .A.to discoverB.to be discoveredC.discoveredD.being diseovered

更多“At least how many tests were carried out by the scientists referred to in this passage ”相关问题

  • 第1题：

    How many PPM of the oily water can be pumped out within 12 miles along the China coast line？ ______.

    A.at least 15 PPM

    B.about 15 PPM

    C.up to 15 PPM

    D.no less than 15 PPM


    正确答案：C

  • 第2题：

    How many teeth did the dentist take out?

    A:dig
    B:draw
    C:pull
    D:extract

    答案：D
    解析：
    本句意思：牙科医生拔了几颗牙？take out 意为“取出，摘除”，与extract（取当，拔出）意决思相近。dig挖；draw抽，取；pull拉。

  • 第3题：

    How many seats in the House of Commons should a party hold at least in order to win the election?
    It needs at least 326.
    略

  • 第4题：

    有多少节锚链在外？（）

    • A、How many shackles are out ?
    • B、How much shackles are out ?
    • C、How much cable is out ?
    • D、How many cable is out ?

    正确答案:C

  • 第5题：

    问答题
    How many seats in the House of Commons should a party hold at least in order to win the election?

    正确答案： It needs at least 326.
    解析： 暂无解析

  • 第6题：

    单选题
    How many more decades will have to pass ______ scientists succeed in providing a cure for cancer?
    A

    when

    B

    before

    C

    since

    D

    until


    正确答案： B
    解析：
    句意：还要多少年科学家能成功提供治疗癌症的方法？before在…之前。其他选项都不符合题意。

  • 第7题：

    单选题
    How many homes altogether were damaged in the storm? _____.
    A

    Fourteen

    B

    Twenty-one

    C

    Twenty-nine

    D

    Thirty-six


    正确答案： D
    解析：
    根据第一段出现的三个数字14，7，15，可以推断共有36个房屋在暴风雨中被毁坏。

  • 第8题：

    单选题
    How many kinds of atlases are mentioned in the passage?
    A

    One

    B

    Two

    C

    Three

    D

    Many


    正确答案： D
    解析：
    细节理解题。文章第二段和第三段分别介绍了Desk atlas和Travel atlas。所以，本文介绍了两种地图册。

  • 第9题：

    问答题
    Passage 2　　A land free from destruction, wealth, natural resources, and labor supply--all these were important  1 in helping England to become the center for the Industrial Revolution.  2 they were not enough. Something  3 was needed to start the industrial process. That "something special", was men-- creative individuals who could invent machines, find new sources of power, and  4 business organizations to reshape the society.　　The men who created the machines of the Industrial Revolution  5  from many backgrounds and many occupations. Many of them were  6 inventors than scientists. A man who is a pure scientist is primarily interested in doing his research accurately. He is not necessarily working  7 that his findings can be used.　　An inventor or one interested in applied science is usually trying to make something  8 has a concrete use. He tries to solve a problem by following the theories of science or by experimenting  9 trial and error. Regardless  10  his method, he is working to obtain a specific result: the construction of a harvesting machine, the burning of a light bulb, or one of many other objectives.　　Most of the people who developed the machines of the Industrial Revolution were  11 . A  12 were both scientists and inventors. Even those who had little or no training  13 science might have made their inventions, 14   a groundwork had been laid by scientists years  15  .

    正确答案： 1. factors 根据句意,没有破坏的土地、财富、自然资源和劳动力都是英国成为工业革命中心的重要因素。因此填入factors。
    2. But 通过后面的not enough可知,空格处应该填入表示转折的But。注意首字母大写。
    3. else 文章一开始就提到一系列因素,接着说这些因素还不够,由此可知,此处填入else,修饰something表示其他事物。
    4. establish/found/start 空格部分需填入动词与business organizations搭配。
    5. came/were 句意:工业革命中发明各种机器的人有着各种背景,从事各种职业。come from/ be from来自。注意此处需使用过去时态。
    6. more more...than...后跟形容词、副词、动词、名词等,且more后部分和than后部分词类相同,表示“与其说……不如说、是……不是、是……更是、有……无……”等。
    7. so so that表示结果。这里指科学家的工作不一定是要让他的发现能够被使用。
    8. that 空格部分填入that引导定语从句修饰不定代词something。
    9. through trial and error反复试验;不断摸索。这里填入through,意思为“通过,凭借”。
    10. of regardless of不顾,不管。
    11. inventors 通过上文介绍可知,发明家更倾向于发明实用的东西,而科学家的研究不一定能够被使用。因此该句应该填入inventors。
    12. few 此处填入few。a few“一些”,与上一句中的most of the people形成对比。
    13. in training in sth.关于……的培训。
    14. because 逗号后面的句子为前面的句子的原因,因此填入because。
    15. before 句意:甚至那些很少甚至没有接受科学培训的人也可能会发明东西,因为科学家数年前就已经奠定好了基础。years before数年前。
    解析： 暂无解析

  • 第10题：

    单选题
    Shipboard Emergency Drills must be carried out at least（）on board cargo ship.
    A

    Once every third year

    B

    Once a month

    C

    Once a year

    D

    Once a week


    正确答案： C
    解析： 暂无解析

  • 第11题：

    单选题
    In the Cisco Resilient Ethernet Protocol （REP）， how many ports are always blocking？（）
    A

    zero

    B

    at least one

    C

    at least two

    D

    at least four

    E

    at least three


    正确答案： E
    解析： 暂无解析

  • 第12题：

    单选题
    —How many people were invited to the meeting?—About six ______
    A

    hundred

    B

    hundreds

    C

    hundred of

    D

    hundreds of


    正确答案： D
    解析：
    考查数词的用法。句意：——多少人被邀请参加会议？——大约六百人。hundred前面有具体数词修饰时，其后不能加“s”，也不与“of”连用，故选A。

  • 第13题：

    共用题干
    Learning Disabilities
    Learning disabilities are very common.They affect perhaps 1 0 percent of all children.Four times as many boys as girls have learning disabilities.
    Since about 1970,new research has helped brain scientists understand these problems better.Scientists now know there are many different kinds of learning disabilities and that they are caused by many different things.There is no longer any question that all learning disabilities result from differences in the way the brain is organized.
    You cannot look at a child and tell if he or she has a learning disability.There is no outward sign of the disorder.So some researchers began looking at the brain itself to learn what might be wrong.
    In one study,researchers examined the brain of a learning-disabled person who had died in an accident. They found two unusual things.One involved cells in the left side of the brain,which control language.These cells normally are white.In the learning disabled person,however,these cells were gray.The researchers also found that many of the nerve cells were not in a line the way they should have been.The nerve cells were mixed together.
    The study was carried out under the guidance of Norman Geschwind,an early expert on learning disabilities, Doctor Geschwind proposed that learning disabilities resulted mainly from problems in the left side of the brain. He believed this side of the brain failed to develop normally.Probably,he said,nerve cells there did not connect as they should.So the brain was like an electrical device in which the wires were crossed.
    Other researchers did not examine brain tissue.Instead,they measured the brain's electrical activity and made a map of the electrical signals.
    Frank Dully experimented with this technique at Children's Hospital Medical Center in Boston.Doctor Dully found large differences in the brain activity of normal children and those with reading problems.The differences appeared throughout the brain.Doctor Dully said his research is evidence that disabilities involve damage to a wide area of the brain,not just the left side.

    According to the passage we can conclude that further researches should be made______.
    A:to help learning-disabled children to develop their intelligence
    B:to study how children learn to read and write,and use numbers
    C:to investigate possible influences on brain development and organization
    D:to explore how the left side of the brain functions in language learning

    答案：C
    解析：
    根据第七段最后一句可知，Doctor Dully的研究表明学习障碍者的大脑不仅左半边有损伤，更大的范围也会有损伤，因此B项正确；根据第四段最后两句可知，研究表明有学习障碍的人的脑神经细胞排列，不像正常人的那样成线状排列，而是混在一起，因此C项正确；根据第四段第三到五句可知，左脑的脑细胞控制言语，左脑有问题可能造成学习障碍，因此D项正确：而A项表述在本篇文章中没有依据，因此选择A项。
    根据第四段第二、三、四、五、六句可知，研究者发现了两个反常现象：学习障碍者左脑细胞的颜色反常，正常人的是白色，他们的是灰色；学习障碍者的脑神经细胞的排列异常。
    根据第二段第二句可知，科学家们已经知道学习障碍不一而同，导致的原因也不同，因此A项正确；根据第三段第一、二句可知，学习障碍不表现在外部，因此B项正确；根据第七段第二句可知，学习障碍者的大脑活动异于常人，因此D项正确。第一段第二句表明，约有10%的孩子有学习障碍，并不是10%的人有学习障碍，因此选择C项。
    根据第七段最后一句可知，Doctor Dully认为学习障碍者不仅局限于左脑有损伤，更大的脑域都可能有问题，因此选择D项。
    本篇文章并没有表明要帮助有学习障碍的孩子提高智力，或要研究孩子如何读书、书写与使用数字，故排除A、B两项；根据第四段第三句可知，科学家们已经知道左半脑控制人的语言能力，故排除D项。根据文章内容和叙事逻辑可知，选项C为正确选项。

  • 第14题：

    What is referred to as the“general appearance”in this passage is________.

    A.how many broad windows a room has,through which sunlight might come in
    B.the size of a room
    C.whether there are beautiful walls in a room
    D.what the room looks like

    答案：D
    解析：

  • 第15题：

    In the Cisco Resilient Ethernet Protocol （REP）， how many ports are always blocking？（）

    • A、zero
    • B、at least one
    • C、at least two
    • D、at least four
    • E、at least three

    正确答案:E

  • 第16题：

    单选题
    According to the passage before the welfare reform was carried out, _____.
    A

    the poverty rate was lower

    B

    average living standards were higher

    C

    the average worker was paid higher wages

    D

    the poor used to rely on government aid


    正确答案： D
    解析：
    推断题。文章末段指出，一旦打破了这种依赖习惯，政府即可进行提高生活水准的政策改革。因此，可推知在福利制度改革之前，穷人习惯于依赖政府的福利援助而生活。故D为答案。

  • 第17题：

    单选题
    It is implied in the passage that ______.
    A

    many scientists had known dinoflagellate before 1988

    B

    there had been no such organisms before 1988

    C

    many scientists were in doubt about the nature of the organism in 1988

    D

    no scientists knew anything about the organism in 1988


    正确答案： C
    解析：
    推断题。第二段第二句提到1988年在北卡罗莱纳州立大学发现了这种生物时，“few scientists believed in its existence, much less in its highly unusual predatory nature.”，可知那时几乎没有科学家会相信microscopic organisms真的存在，更没有人相信它非同寻常的食肉天性（predatory nature）了。换句话说就是许多科学家对microscopic organisms的食肉天性表示怀疑，因此选项C为正确答案。

  • 第18题：

    单选题
    People were given physical fitness tests in order to find out _____.
    A

    how well they could do in athletics

    B

    what their health condition was like

    C

    what kind of fitness center was suitable for them

    D

    whether they were fit for aerobic exercise


    正确答案： D
    解析：
    细节题。本题询问人们进行健康检查的目的。末段首句提到，从历史上来看，大多数健康检查通常包括肌肉力量和耐力，最初像肌肉力量和耐力这样的健康成分与运动员的行为相关；即，作为运动员，这两项是检查的范围，这与A项相符，而与其他项不符，故A为答案。

  • 第19题：

    单选题
    How many places of interest are mentioned in the passage? ______
    A

    Three.

    B

    Four.

    C

    Five.

    D

    Six.


    正确答案： D
    解析：
    【语篇解读】本文是一篇记叙文，题材是旅游，是一个外国游客所写的关于扬州的游记。文章作者对扬州的景点及交通提出了一些合理的建议。另外作者也讲述了他在游玩过程中的一些经历。
    细节理解题。通读文章可知，本文提到了Ge Garden，He Garden，Slender west Lake和Mastixia Bay四个景点，故选B项。

  • 第20题：

    单选题
    We know from this passage that over one hundred seventy years ago ______.
    A

    no women worked outside their homes

    B

    women were considered as children by the law

    C

    women cared nothing about how their family lives were

    D

    women were not allowed to decide how to spend their money or how to teach children


    正确答案： D
    解析：
    推理判断题。题干意为“从文章中我们可以知道170年前，美国的妇女是怎样的”。从文章的第一段最后一句话Decisions about family matter sand about the children were made by her husband, the‘head of the family’. 可知，当时，美国的妇女根本没有权利过问家庭事务，甚至是孩子的抚养等问题。所以本题的正确答案为D。

  • 第21题：

    单选题
    How many PPM of the oily water can be pumped out within 12 miles along the China coast line?（）.
    A

    at least 15 PPM

    B

    about 15 PPM

    C

    up to 15 PPM

    D

    no less than 15 PPM


    正确答案： B
    解析： 暂无解析

  • 第22题：

    单选题
    Preventive maintenance （）.
    A

    should not be carried out during the watches

    B

    can only be carried out in port

    C

    is a kind of maintenances carried out prior to the occurrence

    D

    is a kind of maintenances carried out after the occurrence


    正确答案： B
    解析： 暂无解析

  • 第23题：

    单选题
    According to the passage, the scientists carried out their researches on ______.
    A

    smokers from different parts of the world

    B

    smokers from different states in the United States

    C

    actors and actresses who smoke a lot

    D

    wait staff and bartenders


    正确答案： C
    解析：
    推断题。答案来自第一段最后：…nonsmokers working in bars and restaurants in the state.由此可知其实验对象为酒吧与餐厅的侍者，答案为D。

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