20、The light will be thrown ______ the cause of cancer by research that is now in progress.

      A. to                             B. upon                         C. in                       D. for

20、B

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The light will be thrown ______ the cause of cancer by research that is now in progress


  1. A.
    to
  2. B.
    upon
  3. C.
    in
  4. D.
    for

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 The light will be thrown ______ the cause of cancer by research that is now in progress.

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The light will be thrown ______ the cause of cancer by research that is now in progress.

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The light will be thrown ______ the cause of cancer by research that is now in progress.

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科目：高中英語(yǔ) 來(lái)源：黑龍江省鶴崗一中2009-2010學(xué)年高二下學(xué)期期末考試試題（英語(yǔ)） 題型：單選題


The light will be thrown ______ the cause of cancer by research that is now in progress.

A．toB．uponC．in D．for

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