商业银行的投资业务是指商业银行从事( )的经营活动。
A.购买有价证券
B.租赁
C.代理买卖
D.现金管理
参考答案:A
解析: 投资业务即证券投资。
Assessment of a client in active labor reveals meconium-stained amniotic fluid and fetal heart sounds in the upper right quadrant. Which of the following is the most likely cause of this situation
A. Breech position.B. Late decelerations.C. Entrance into the second stage of labor.D. Multiple gestation.
衡量微机测控系统可靠性的关键指标是()
A.CPU的处理能力
B.MTBF
C.系统的I/O驱动能力
D.MTTR(平均维修时间)