初产妇，24岁。妊娠39周，规律宫缩9小时入院，查：骼棘间径24cm，坐骨结节间径7.5cm。枕左前位，胎心140次/分。肛查宫口开大4cm，S=0。2小时后产妇呼叫腹痛难忍，检查宫缩1分钟1次，持续40秒，宫缩时胎心116次/分，子宫下段压痛明显。 * * 检查宫口开大5cm，先露胎头。

此时，最可能的诊断是（）

A.胎儿窘迫

B.不协调性子宫收缩过强

C.不协调性子宫收缩乏力

D.先兆子宫破裂

E.重型胎盘早剥

Before the operation, the doctor had to talk to the patient in order to move her fear ________ she might die during the operation.

A．when

B．that

C．which

D．so that