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 题目和参考答案——青夏教育精英家教网—

题目内容

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

答案：D
提示：

discovered与what的关系决定了用被动式，排除A、C项，从题意知，动作不可能发生在牛顿之前，故排除B项。D项表示现代科技的状况。

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

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C. has discovered D. has been discovered

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

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A.had discovered B.had been discovered

C.has discovered D.has been discovered

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