The gar is a fish with a long slender body and scales as hard as flint.A.flatB.straightC.

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The gar is a fish with a long, slender body and scales as hard as flint.

A.flat

B.straight

C.slim

D.fragile

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