鸟类的体型有利于它飞行时减少飞行阻力，它的体型是_刷题宝

题干

鸟类的体型有利于它飞行时减少飞行阻力，它的体型是（）

A：流线型

B：扇形

C：长方体形

D：侧扁形

上一题下一题 0.0难度选择题更新时间:2017-11-29 08:01:34

答案(点此获取答案解析）

A

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