you may also find it as an example from a textbook something like

you may also find it as an example from a textbook something like

所有跟贴·加跟贴·新语丝读书论坛

送交者: JFF 于 2009-11-13, 19:46:11:

回答: did i say it is a true story ? 由 JFF 于 2009-11-13, 19:42:28:

law and ethic for professional engineer.