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ClassDS
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Peking4th
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北京四中初中物理
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初三物理
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电功率与生活用电
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1电能
2020-09-22 02:06:16
113.7MB
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2电功率
2020-09-22 02:06:21
115.3MB
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3测量小灯泡的电功率
2020-09-22 02:06:25
114MB
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4焦耳定律
2020-09-22 02:06:27
122.3MB
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5生活用电
2020-09-22 02:06:30
127.1MB
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