[問題]2000年 01月 Q38 ( STRUCTURE) (已收錄)

[jordanmax3]

38.
Rarely has a technological development had as great an impact on as much aspects of social, economic, and cultural development as the growth of electronics.
Ans:B

我知道rarely後面要用倒裝句 就是動詞拿到前面來 為什麼後面還有一個had啊？？

[ypy00]

前面的has是助動詞