We ought to______ detailed investigations and studies before we draw any conclus

游客2024-02-21 7

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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