like therer are known unkowns and unkown unkowns
所有跟贴·加跟贴·新语丝读书论坛
送交者: 008 于 2007-09-29, 01:57:56:
回答: nobody knows the answer for sure, but somebody chose to make assumption, 由 校长 于 2007-09-29, 00:30:33:
somebody know they don't know, somebody don't know they don't know
所有跟贴:
加跟贴