我的加油站
**加油后又可以继续向前冲了**
Sunday, January 23, 2011
有趣的“梯子理论“
不久前,同事和我分享了一个蛮有趣的理论,"ladder theory"。有兴趣的可以阅览 http://www.laddertheory.com/ladderconstruction.htm
大家一致上同意它是对的,我无语啊!!
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