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Rising evidence suggests that the use of the vaccines(疫苗)will be effective to       the spread of common cold


  1. A.
    interrupt
  2. B.
    threaten
  3. C.
    contribute
  4. D.
    abandon
A
动词辨析。A中断;遮断;阻碍;B威胁;C导致,投稿;D抛弃,放弃;根据句意使用疫苗可以有效的阻碍感冒的传播。
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