Michael Faraday made a great discovery ______ that electricity could be made to flow in a coil (一卷) of wire.

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问题 Michael Faraday made a great discovery ______ that electricity could be made to flow in a coil (一卷) of wire.

选项 A、when he found
B、to find
C、was found
D、he found

答案A

解析此处为when引导的时间状语从句。

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英语

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