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·[有声音又没光时灯亮了,此时相当于有了光,那光控开关不就断开了吗?] 发表评论于 2009/9/11 18:57:45
 夜晚没光有声音时,灯亮了,此时不就相当于有光照了吗,那光控开关不就断开了吗?
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·[ABC] 发表评论于 2009/4/28 8:48:19
 look
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