何以見得?
所有跟帖:
• 樣本和總體有什麽關聯? -xavet- ♂ (0 bytes) () 06/20/2011 postreply 19:54:55
• The report is not based on samples. -khyang86- ♂ (0 bytes) () 06/20/2011 postreply 21:56:42
• 樣本和總體有什麽關聯? -xavet- ♂ (0 bytes) () 06/20/2011 postreply 19:54:55
• The report is not based on samples. -khyang86- ♂ (0 bytes) () 06/20/2011 postreply 21:56:42