问题
单项选择题
If Newton lived today, he would be surprise by what（）in science and technology.
A. had discovered
B. had been discovered
C. has discovered
D. has been discovered
答案
参考答案：D
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If Newton lived today, he would be surprise by what（）in science and technology.
A. had discovered
B. had been discovered
C. has discovered
D. has been discovered
参考答案：D