The pills might have cured him, if only he'd taken them________. [ ]

A．regularly  

B．physically

C．usually  

D．formerly

青少年蛛网膜下腔出血常见于（）。

A.血管畸形破裂

B.动脉瘤破裂

C.肿瘤卒中

D.感染性病变

E.寄生虫病变