that is C

that is C

所有跟贴·加跟贴·新语丝读书论坛

送交者: meiyou 于 2009-04-17, 11:07:19:

回答: 为什么很少讨论万有引力的速度? 由 HunHunSheng 于 2009-04-17, 11:05:32:

How did you know? (无内容) - HunHunSheng (0 bytes) 2009-04-17, 11:29:47 (315323)
- I remembered - googled this - meiyou (12438 bytes) 2009-04-17, 11:44:35 (315336)