The scientist has been greatly successful in the experiment that he _____ to do three years ago. [ ]

题目简介

The scientist has been greatly successful in the experiment that he _____ to do three years ago. [ ]

题目详情

The scientist has been greatly successful in the experiment that he _____ to do three years ago.

[     ]

A. set off
B. set down
C. set out
D. set about
题型:单选题难度:中档来源:同步题

答案

C

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