39.显微镜观察时所要观察的物体必须是薄而透明的其原因是 A.能让光线透过 b.便于放置在载物台上 C.不易污染物镜——青夏教育 Template




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tomski39.显微镜观察时所要观察的物体必须是薄而透明的其原因是 a.能让光线透过 b.便于放置在载物台上 coloring