题目内容
________ these experiments were successfully completed would we think of going into humans.
| A.If only | B.Only if | C.So that | D.Even if |
B
解析试题分析:句意:只有这些实验完全成功以后,我们才会考虑把它应用于人类。根据“would we think of going into humans.”可知这个句子使用了部分倒装,所以用only+状语从句位于句首,选B。
考点:考查部分倒装
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