问题
单项选择题
汽车下坡加速行驶时，其行使阻力中（）为正值。
A．惯性阻力；
B．空气阻力；
C．坡度阻力
答案
参考答案：A
搜题请搜索小程序“爱下问搜题”
汽车下坡加速行驶时，其行使阻力中（）为正值。
A．惯性阻力；
B．空气阻力；
C．坡度阻力
参考答案：A
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