你的答案是对的. 脑子转的很快嘛.不过这题是考逻辑,要讲出道理,不要一盏灯一盏灯的来算. 亮的灯的编号有规律……你怎么推出的？

moremorejoy(乐多多)

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Last Updated: 2002-2-9
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