________him that she would fail as she was so able and worked so hard.[ ]

A．It never occurred to  

B．That never occurred to

C．It never occurred with  

D．That never occurred for

脑栓塞的常见病因为（）

A.常见病因为慢性喘息性支气管炎

B.常见病因为风湿性心脏病

C.常见病因为冠状动脉粥样硬化性心脏病

D.常见病因为高血压、动脉硬化

E.常见病因为脑动脉瘤、脑血管畸形