不属于硝酸甘油药理作用的是
A．扩张心外膜血管
B．降低心室壁张力
C．降低左室充盈压
D．保护缺血心肌细胞
E．降低交感神经活性
参考答案：E
---- Have you enjoyed your visit here? ---- Yes, I'll be very sorry______ .
A．for leaving
B．of leaving
C．to leave
D．with leaving
When crossing the street, you should always ______ the traffic. [ ]
A. watch
B. watch out
C. watch for
D. watch out for
