GMAT 考满分题库

- 语法SC -

Assuming that the new drug is approved, it will remain to be seen whether it decreases post-traumatic stress disorder in military veterans after it is widely administered.

  • A

    whether it decreases post-traumatic stress disorder in military veterans after it is widely administered

    分析该选项
  • B

    whether it decreases post-traumatic stress disorder in military veterans once they widely administer it

    分析该选项
  • C

    whether it decreases post-traumatic stress disorder in military veterans once it has been widely administered

    分析该选项
  • D

    if it decreases post-traumatic stress disorder in military veterans once it is widely administered

    分析该选项
  • E

    if it decreases post-traumatic stress disorder in military veterans after it has been widely administered

    分析该选项
显示答案
正确答案: C

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