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    Which of the following is NOT mentioned as a factor contributing to the extent to which a virus spreads? A. The strength of the virus. B. The ease with which the virus can be transmitted. C. The strength of the opposition. D. The immunity the virus can bring about. 【查看更多】

     

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    When you are reading English novels, if you meet with some new words you can         this dictionary. Which of the following can’t be used in this sentence?


    1. A.
      turn to
    2. B.
      refer to
    3. C.
      consult
    4. D.
      look up

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