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12/1/2008 4nightspend我也怀疑,感觉是起起落落的正弦函数。俯视时总是满满的样子,仰视时情况就不那么相同了。不过规律依旧是规律,等下一个直角到来吧。 TrackbacksThe trackback URL for this entry is: http://xuchen0209.spaces.live.com/blog/cns!84076302AAF5860C!876.trak Weblogs that reference this entry
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