单项选择题
A. 51 pounds B. 1.45 pounds C. 2.42 pounds D. 1.35 pounds E. 16 pounds F. 1.85 pounds G. 17 pounds H. 2.16 pounds
A．They work in situations of conflict. B．Their work is completed very quickly. C．Managers do many things at the same time. D．Managers give orders.