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外因是变化的条件,内因是变化的根据,...
bti2005
(rednose)
... 外因通过内因而起作用。鸡蛋因得适当的温度而变化为小鸡,但温度不能使石头变为鸡子,因为二者的根据是不同的(毛泽东)
replace 鸡蛋 to your own stuff, and the heat to your other sutff.
(#5522@30)
Last Updated: 2008-9-23
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Replies, comments and Discussions:
请问海豹鞭吃完后30-40分钟一定会勃起吗?还是说需要有一定的刺激才可以?我吃了以后,没反应啊。
枫下佳猿-两性成人