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    科目： 来源：不详 题型：单选题


    From facts, scientists have_______ that more energy is being absorbed from the sun, throwing the earth’s energy “out of balance”.
    A．confirmed B．concludedC．concentratedD．centered

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    科目： 来源：不详 题型：单选题


    In their efforts to persuade us to buy that product, shopkeepers have made a close study of human nature and have_______ all our little weaknesses.
    A．dividedB．arrangedC．classifiedD．separated

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    科目： 来源：不详 题型：单选题


    I want to ________ the secrets of nature and apply them for the happiness of man.
    A．bring inB．bring outC．bring upD．bring about

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    科目： 来源：不详 题型：单选题


    News reports say peace talks between the two counties have________ with no agreement reached.
    A．broken downB．broken outC．broken inD．broken up

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    科目： 来源：不详 题型：单选题


    . ------- What do you think of Harry, our new roommate?
    -------- I am not sure, but he is always asking ______ questions.
    a great many of  B. a great many  C. a great number  D. a large amount of

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    科目： 来源：不详 题型：单选题

    Thank you, Mr. Chen. I’m wondering how to ______ the great help you gave me during my study this year.
    A．pay backB．keep backC．hold backD．look back

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    科目： 来源：不详 题型：单选题

    Many useful suggestions were ______ at the meeting to ensure people can live a low carbon life.
    A．put upB．put forwardC．put awayD．put off

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    科目： 来源：不详 题型：单选题

    ----How did you find the party ?
    ----Perfect ! It ______ very well .
    A．turned offB．went offC．got offD．put off

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    科目： 来源：不详 题型：单选题

    It was unwise of him to _________ the unreliable data in his speech.
    A．refer toB．add toC．belong toD．point to

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    科目： 来源：不详 题型：单选题

    _________ the extremely hot weather, we continued having classes．
    A．Thanks toB．In addition toC．In defence ofD．Regardless of

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