______it or not, his discovery has created a stir in scientific circles.

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问题 ______it or not, his discovery has created a stir in scientific circles.

选项 A、Believe
B、To believe
C、Believing
D、Believed

答案D

解析被动态。由于句子主语为his discovery，所以分句要用被动态。四个选项中只有D为过去分词形式，所以正确答案是D选项。

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考博英语

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