A recent survey shows that most adolescents eat ______ as they actually need every day.A.p

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A recent survey shows that most adolescents eat ______ as they actually need every day.

A.protein as three times much

B.three times protein as much

C.three times as much protein

D.protein as much three times

请帮忙给出正确答案和分析,谢谢!

热搜:a是b的充分条件,b是a的必要条件吗