It was with great excitement one morning in July ____ the young man got the news that he was admitted to the university of his choice.

A．when

B．who

C．that

D．which

胎盘部分粘连于子宫壁，来自行剥离

A．子宫收缩乏力
B．软产道裂伤
C．胎盘剥离不全
D．胎盘部分粘连
E．凝血功能障碍