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    精英家教网 > 高中英语 > 题目详情

    He _____the problem _____in his mind for a whole week before he did anything about it.

    A. switched; on        B. kicked; up       C. turned; over         D. took; on

    C


    解析:

    句意：在采取措施之前，他在脑中将这个问题反复思考了一个星期。turn over :to think about carefully仔细考虑；switch on把开关打开；kick up引起；take on呈现、雇用、承担。

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      1. A.
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        uses radio waves to create power.
      3. C.
        has replaced conventional batteries.
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        produces many toxic chemicals.
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      According to Professor Allen, power harvesting technology______.

      1. A.
        makes every use of radio waves.
      2. B.
        takes power from usual sources.
      3. C.
        reduces our dependency on conventional batteries.
      4. D.
        aims at huge commercial benefits.
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      What can we learn about Professor Allen and his team from the text?

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      2. B.
        They have raised a big fund to support their research.
      3. C.
        They have gained a patent for their new technology.
      4. D.
        They mainly did their research in their spare time.
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      1. A.
        Critical.
      2. B.
        Favorable.
      3. C.
        Conservative.
      4. D.
        Negative.
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      What is the text mainly about?

      1. A.
        A new technique to create power.
      2. B.
        A crisis concerning conventional batteries.
      3. C.
        Some special sources of power.
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        The development of power harvesting.

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