2. 外语
  3. We ought to______ detailed investigations and studies before we draw any conclusions.

We ought to______ detailed investigations and studies before we draw any conclusions.

admin2011-01-25  79
问题 We ought to______ detailed investigations and studies before we draw any conclusions.
选项 A、administrate
B、process
C、undertake
D、duplicate
答案C
解析 动词辨析 administrate“管理，支配”；process“加工，处理”；undertake“承担，担任，许诺”； duplicate“复写，复制，使加倍”。
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大学英语四级

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