甲乙两物体叠放在水平面上,用水平力F拉物体乙,他们仍保持静止状态,甲.乙间接触面也为水平,则乙物体受力的个数为( )A.3个 B.4个 C.5个 D.6个 说明理由,
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![甲乙两物体叠放在水平面上,用水平力F拉物体乙,他们仍保持静止状态,甲.乙间接触面也为水平,则乙物体受力的个数为( )A.3个 B.4个 C.5个 D.6个 说明理由,](/uploads/image/z/8392948-52-8.jpg?t=%E7%94%B2%E4%B9%99%E4%B8%A4%E7%89%A9%E4%BD%93%E5%8F%A0%E6%94%BE%E5%9C%A8%E6%B0%B4%E5%B9%B3%E9%9D%A2%E4%B8%8A%2C%E7%94%A8%E6%B0%B4%E5%B9%B3%E5%8A%9BF%E6%8B%89%E7%89%A9%E4%BD%93%E4%B9%99%2C%E4%BB%96%E4%BB%AC%E4%BB%8D%E4%BF%9D%E6%8C%81%E9%9D%99%E6%AD%A2%E7%8A%B6%E6%80%81%2C%E7%94%B2.%E4%B9%99%E9%97%B4%E6%8E%A5%E8%A7%A6%E9%9D%A2%E4%B9%9F%E4%B8%BA%E6%B0%B4%E5%B9%B3%2C%E5%88%99%E4%B9%99%E7%89%A9%E4%BD%93%E5%8F%97%E5%8A%9B%E7%9A%84%E4%B8%AA%E6%95%B0%E4%B8%BA%28+%29A.3%E4%B8%AA+B.4%E4%B8%AA+C.5%E4%B8%AA+D.6%E4%B8%AA+%E8%AF%B4%E6%98%8E%E7%90%86%E7%94%B1%2C)
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