F is defined as dp/dt. Nothing to do with the real world.
所有跟贴·加跟贴·新语丝读书论坛http://www.xys.org/cgi-bin/mainpage.pl
送交者: 008 于 2005-1-14, 16:41:08:
回答: 客观世界没有不能认识和改造的? really? so you can tell 由 steven 于 2005-1-14, 14:50:44:
所有跟贴:
加跟贴
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