初二的物理练习题(声学全部,第二章一直到光的反射的题)关于知识点的,还不能重复,一个知识点一道,最好简洁点.填空那种的,太难了我不会,30道.啊啊啊啊物理老师变态死了啊!啊啊啊啊要
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![初二的物理练习题(声学全部,第二章一直到光的反射的题)关于知识点的,还不能重复,一个知识点一道,最好简洁点.填空那种的,太难了我不会,30道.啊啊啊啊物理老师变态死了啊!啊啊啊啊要](/uploads/image/z/1800325-37-5.jpg?t=%E5%88%9D%E4%BA%8C%E7%9A%84%E7%89%A9%E7%90%86%E7%BB%83%E4%B9%A0%E9%A2%98%EF%BC%88%E5%A3%B0%E5%AD%A6%E5%85%A8%E9%83%A8%2C%E7%AC%AC%E4%BA%8C%E7%AB%A0%E4%B8%80%E7%9B%B4%E5%88%B0%E5%85%89%E7%9A%84%E5%8F%8D%E5%B0%84%E7%9A%84%E9%A2%98%EF%BC%89%E5%85%B3%E4%BA%8E%E7%9F%A5%E8%AF%86%E7%82%B9%E7%9A%84%2C%E8%BF%98%E4%B8%8D%E8%83%BD%E9%87%8D%E5%A4%8D%2C%E4%B8%80%E4%B8%AA%E7%9F%A5%E8%AF%86%E7%82%B9%E4%B8%80%E9%81%93%2C%E6%9C%80%E5%A5%BD%E7%AE%80%E6%B4%81%E7%82%B9.%E5%A1%AB%E7%A9%BA%E9%82%A3%E7%A7%8D%E7%9A%84%2C%E5%A4%AA%E9%9A%BE%E4%BA%86%E6%88%91%E4%B8%8D%E4%BC%9A%2C30%E9%81%93.%E5%95%8A%E5%95%8A%E5%95%8A%E5%95%8A%E7%89%A9%E7%90%86%E8%80%81%E5%B8%88%E5%8F%98%E6%80%81%E6%AD%BB%E4%BA%86%E5%95%8A%21%E5%95%8A%E5%95%8A%E5%95%8A%E5%95%8A%E8%A6%81)
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