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第三個看不懂...幫忙解釋一下吧～第四個超適合擺在高中數學教室！我以前數學老師有個 pi/6, pi,3, pi/4, pi/...的時鐘在教室，考試前要把它拿下來。
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Reader Comments (Page 1 of 1)
liu_kevin1 @ May 31st 2009 3:32AM
第三個看不懂...幫忙解釋一下吧～
第四個超適合擺在高中數學教室！
我以前數學老師有個 pi/6, pi,3, pi/4, pi/...的時鐘在教室，考試前要把它拿下來。