The reason_____he gave for his coming late was _____his car broke down on the way.

A．why;because

B．that;that

C．for which;that

D．that;because

患者女性，38岁，诊断为嗜铬细胞瘤所致继发性高血压，拟手术治疗，术前降压首选（）。

A.α受体阻滞剂

B.卡托普利

C.钙拮抗剂

D.β受体阻滞剂

E.硝普钠