治疗心律失常、心绞痛、肥厚性心肌病应选择：
A．尼莫地平
B．维拉帕米
C．硝苯地平
D．地尔硫草
E．尼群地平
参考答案：B
— Could I use your computer for a few moments, please?—__________. I’m not using it myself.
A．Come on
B．It depends
C．Go ahead
D．That’s great
工业锅炉的给水除氧大都以（）为主。
