it is noon at both places, so not simoutaniusly.
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: chouqilozi 于 2005-1-12, 17:08:49:
回答: 埃拉托色尼妙而准确地测定了地球周长 由 HunHunSheng 于 2005-1-12, 16:39:33:
所有跟贴:
加跟贴
所有跟贴·加跟贴·新语丝读书论坛http://www.xys.org/cgi-bin/mainpage.pl