I shall never forget the years____ I lived in the countryside with the farmers, ____ has a great effect on

my life.[ ]

A. that, which

B. when, which

C. which, that

D. when, who

已婚女性，29岁，停经50天， * * 流血伴下腹隐痛5天，加剧半天。近1周有恶心、食欲不振等不适。妇检： * * 内有较多血块，宫颈口开大，可见血块及组织堵塞于宫颈口，子宫约50天孕大，最可能的诊断是（）。

A.难免流产

B.不全流产

C.先兆流产

D.稽留流产

E.完全流产