If Newton lived today, he would be surprised by what _______ in science and technology._刷题宝

题干

If Newton lived today, he would be surprised by what _______ in science and technology.

A：had discovered

B：had been discovered

C：has discovered

D：has been discovered

上一题下一题 0.0难度选择题更新时间:2018-03-27 11:05:51

答案(点此获取答案解析）

D

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