--Didn't you have a wonderful time ? ---____.

A．Yes, I didn't

B．Yes, I did.

C．No, I did

D．Yes, of course not

某孕妇足月临产，宫缩发动13h，宫缩强烈，产妇烦躁不安，不断告诉护士腹痛难忍。检查：子宫呈葫芦状。腹部有个环状凹陷与脐平，下腹压痛，胎位不清，胎心168次/分。

诊断最大可能是

A．子宫不协调收缩

B．子宫收缩过强

C．先兆子宫破裂

D．子宫破裂

E．胎盘早剥