在CDS系统中,下列部件数目不正确的是()
A. DEU-2个
B. DU-6个
C. 同轴耦合器-2个
D. EFIS控制面板-2个
关于施工项目招标投标的说法中正确的有()。
A. 评标委员会由招标人任意指定人员组成
B. 一个承包商只能投递一份投标文件
C. 一个工程应对不同的投标单位编制不同的标底
D. 招标委员会的成员中,技术、经济等方面的专家不得少于总数的1/2在招标文件要求投标文件提交的截止时间后送达的投标文件,招标人必须拒收
芦苇几乎遍及全国,多生于池沼、河旁、湖边,常形成成片的群落。
A. 正确
B. 错误
Given below is a list of scenarios: 1) A user terminates his session abnormally. 2) The connection between the server and the client application terminates because of a network failure. 3) A schema is accidentally dropped. 4) The tablespace is accidentally dropped from the database. 5) The hard disk gets corrupted and the data files in the disk are lost. 6) The database instance abnormally shuts down because of power failure. Which scenarios require DBAintervention to perform recovery()
A. 1, 3, and 6
B. 4, 5, and 6
C. 3, 4, and 5
D. 1, 2, and 6