()therocketscomingintobeing,theSpaceAgebegan,()Chinaissuretop;ayanimportantroleA.as;whenB.with;atwhichC.with;inwhichD.as;while该题正确答案应选C,说明其他几项为什么不对,

问题：()therocketscomingintobeing,theSpaceAgebegan,()Chinaissuretop;ayanimportantroleA.as;whenB.with;atwhichC.with;inwhichD.as;while该题正确答案应选C,说明其他几项为什么不对,

答案：↓↓↓

刘志军的回答：

网友采纳　　withthe.是独立主格结构嘛　　inwhich的选项是因为固定短语“playanimptroleinsth”