This is the reason______an aeroplane can’t fly in space.A、whichB、whyC、whereD、

游客2025-03-05 43

问题 This is the reason______an aeroplane can’t fly in space.

选项 A、which
B、why
C、where
D、for that

答案 B

解析本题考查定语从句关系副词的用法。先行词为reason，why在从句中作状语。

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