下列哪项情况,所需推力等于阻力() A.以恒定TAS下降 B.以恒定IAS平飞 C.

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问题:

下列哪项情况,所需推力等于阻力()

A.以恒定TAS下降

B.以恒定IAS平飞

C.加速平飞

D.以恒定IAS爬升

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