你的闹钟不至于是通上交流电的吧,两节电池足矣嗳。。。。。
难怪老疯说女人学物理是瞎胡闹,哈哈哈
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我的闹钟就是通上交流电的
-大灰狼太太-
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11/09/2012 postreply
02:57:02
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他说的强电与弱电, 可能指的是电压,交流电电压高,
-sure-
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11/09/2012 postreply
10:44:10
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晕了!估计狼太也清醒不到哪里去。。。。。
-东风飘-
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11/10/2012 postreply
01:36:22
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