国外工程咨询公司最基本、最广泛的业务是( )。
A．为业主服务
B．为承包商服务
C．为贷款方服务
D．联合承包工程
参考答案：A
Antarctica is so mystically described by some people. If only I _____ there! [ ]
A. had been
B. have been
C. have gone
D. had gone
目前用于治疗血吸虫病的首选药物是（）
A.酒石酸锑钾
B.呋喃丙胺
C.六氯对二甲苯
D.青蒿琥酯
E.吡喹酮
