You work as a database administrator for Supportcenter.cn. You have set the retention period for Automatic Repository (AWR) statistics to four days and collection interval to 15 minutes. You want to view the statistics collected and stored in AWR snapshot. Which two methods would you use to view the AWR statistics?()
A. use enterprise manager
B. use DBMS_SQL package
C. use DBMS_AWR package
D. use PRVT_WORKLOAD package
E. query the AWR snapshot repository objects
F. use DBMS_WORKLOAD_REPOSITORY package
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政治集会是公民通过宪法规定的手段和机会来表示自己的政治观点和政治态度,从而影响政府政策的行为。
A. 正确
B. 错误
患者,男,30岁,左前胸刀刺伤半小时,查体:烦躁不安,皮肤苍白湿冷,呼吸困难,脉细弱,140次/分,颈静脉怒张。血压70/50mmHg。左前胸第5肋间处见约4cm刀伤口。 诊断明确后,正确的治疗措施是()
A. 胸膜腔闭式引流负压吸引
B. 快速输血、补液、抗休克
C. 心包穿刺减压后紧急手术
D. 气管切开,呼吸机辅助呼吸
E. 快速扩容后,应用血管活性药物