心绞痛发作时最常用的速效药物是
A．硝酸甘油B．潘生丁(双嘧达莫)C．普萘洛尔D．氨茶碱E．二硝酸异山梨醇
参考答案：A
7．He visited the Effel Tower, which_____________to 1889, during his stay in France last summer.
A．dated back
B．dates back
C．has dated back
D．has been dated back
芬兰型先天肾病综合征与弥漫性系膜硬化的鉴别是（）
A.前者表现为大量蛋白尿，后者以血尿为主要表现
B.前者常于起病后出现肾功能急剧下降
C.前者起病晚，后者常于宫内起病
D.前者是NPHSI基因突变
E.后者是NPHSI基因突变
