治疗原发性肺动脉高压常用的血管舒张剂是()
A.硝苯地平
B.心得安
C.硝酸甘油
D.苄胺唑啉
E.硝普钠
参考答案:A
Which picture shows that the man is walking past the police station? [ ]
在CT扫描前需要大量饮水的检查部位是()
A.肝胆
B.肺
C.肾脏
D.胰腺
E.膀胱