送交者: yell 于 2008-06-17, 12:21:53:

回答: 非实验科学？ 由 silxirt 于 2008-06-17, 12:20:06:

• Really? At least math is one of the means used to understan - silxirt (73 bytes) 2008-06-17, 12:41:29 (236160)

加跟贴