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【单选题】
汽车从静止到开始运动和正常行驶过程中，都不可避免地受到外界的各种阻力。假定汽车作等速直线行驶，这时汽车所受到的阻力有滚动阻力 、（ ）和 坡道阻力。A.
摩擦阻力
B.
诱导阻力
C.
形状阻力
D.
空气阻力
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