负责仓库警卫工作的人员一般有哪两类？（）
A.保管员和门卫
B.门卫和守护员
C.守护员和经济警察
D.保管员和守护员
参考答案：C
起搏器最基本的心脏起搏方式为（）
A.VVI
B.AAI
C.DDD
D.VVIR
E.DDDR
—Do you know Jim quarrelled with his brother?
—I don’t know,,nor will I listen to anything about it.
A．so do I care
B．I don’t care
C．nor do I care
D．either do I care
