Railway is to a country ______ blood vessel is to a mans body.A.whatB.asC.thatD.like

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Railway is to a country ______ blood vessel is to a mans body.

A.what

B.as

C.that

D.like

请帮忙给出正确答案和分析,谢谢!

热搜:关于氨基酸代谢错误的论述是_________。