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浙江省中考科学（物理部分）第三篇主题2第十一单元波（2）课件.ppt

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第十一单元 波(2),12018盐城有一圆柱形敞口容器，从其左侧某一高度斜射一束激光，在容器底部产生一个光斑O，如图所示，下列操作使光斑向左移动的是 ( )A保持水面高度不变使激光笔向右平移B保持激光射入角度不变使水面上升C保持激光射入角度不变使水面下降D保持水面高度和入射点不变使激光入射角增大,B,

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