例句與造句

1. Methods 601 elderly p ati ents of internal medicine in our hospital were investigated with prospective and retrospective methods from january 1996 to december 1998
   方法對(duì)1996年1月1998年12月我院內(nèi)科601例住院老年病人采取前瞻性與回顧性調(diào)查相結(jié)合的方法進(jìn)行目標(biāo)性監(jiān)測(cè)。
2. It's difficult to find retrospective method in a sentence. 用retrospective method造句挺難的