____ for the fact that she got hit by a car and broke her leg on her way to school, she might have passed

the exam.[ ]

A. Had it not been

B. Hadn't it been

C. Was it not

D. Were it not

妊娠合并心脏病孕妇的护理措施中，下列哪项不正确

A．孕产妇的病室应安静，空气清新

B．孕妇每日至少10小时睡眠

C．限制食盐摄入

D．产程中增加产科检查次数

E．产后出血多时，可用缩宫素