对组织管理进行了系统地研究，被公认为“管理过程之父”的是（）.
A.卢因
B.德鲁克
C.法约尔
D.西蒙
E.梅奥
参考答案：C
_______ David says sounds right to Helen. That’s why she has made up her mind to live with him____ happens.
A．Whatever; whatever
B．No matter what; whatever
C．No matter what; No matter what
D．Whatever; however
交界性早搏的心电图表现是()
A.有窦性P′波
B.QRS>0.12s
C.代偿间期常完全
D.偶联间期常固定
E.提前出现的QRS波群，逆行P′波可有可无
