（多选题）
Which two statements are true about alerts（）
AClearing an alert sends the alert to the alert history.
BResponse actions cannot be specified with server-generated alerts.
CThe nonthreshold alerts appear in the DBA_OUTSTANDING_ALERTS view.
DServer-generated alerts notify the problems that cannot be resolved automatically and requireadministrators to be notified.
正确答案
答案解析
略
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