Which two statements are true about alerts()
A. Clearing an alert sends the alert to the alert history.
B. Response actions cannot be specified with server-generated alerts.
C. The nonthreshold alerts appear in the DBA_OUTSTANDING_ALERTS view.
D. Server-generated alerts notify the problems that cannot be resolved automatically and requireadministrators to be notified.
查看答案
微处理器的控制器中,没有的部件是()
A. 指令部件
B. 累加器
C. 时序部件
D. 微操作控制器件
新转盘或大修后的转盘在(),应试运转。
A. 使用中
B. 使用后
C. 使用前
D. 使用后或使用中