如图所示一物体沿斜面�下匀速�动.关于该物体的受力以下分析正确的是 A.物体只受到重力和�擦力的作用b.物体受到重力和支持力是相互 Template




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tomski如图所示一物体沿斜面�下匀速�动.关于该物体的受力以下分析正确的是 a.物体只受到重力和�擦力的作用b.物体受到重力和支持力是相互 coloring