见识了经济"数"学。经济学教授要求证的恒等式经不起一个小学生的推敲。
1元 =100分
HaHa

见识了经济"数"学。经济学教授要求证的恒等式经不起一个小学生的推敲。
1元 =100分
•
对啊,是笑林之声~~
-大臭臭-
♀
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09/17/2013 postreply
04:18:13
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