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一学生坐在离平面镜1m远的椅子上,当他离开椅子后的1m时,他和镜子中
一学生坐在离平面镜1m远的椅子上,当他离开椅子后的1m时,他和镜子中
发布时间:2020-08-03 14:32:19
一学生坐在离平面镜1 m远的椅子上,当他离开椅子后的1 m时,他和镜子中椅子的像的距离是A.1 mB.2 mC.3 mD.4 m
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C
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