You work as a database administrator for Supportcenter.cn. One of the database users accidentally deleted all the rows of a critical table and committed the delete at 1：30 p.m. You senior database administrator， SupportCenter， asks you to retrieve the lost data. Which two actions would you use to ensure that there is no impact on other connected users while retrieving the deleted rows？（）
A. Use a flashback query to retrieve the rows that were deleted
B. Useconventialincremental export and then import the affected object
C. Shutdown the database inNORMALmode and restart the database instance
D. Use DBMS_META package to reconstruct the object using undo segments
E. UseTablespacePoint in Time Recovery （TSPITR） method to recover the table and the data
F. Use Oracle DataPumptwithflashback_timeoption toentableflashback export and then import the affected object.
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储粮害虫的人为传播是（）的。
A. 快速的、突发的和环球性
B. 缓慢的、突发的和环球性
C. 快速的、渐变的和环球性
D. 缓慢的、渐变的和局部性
I wonder if Tim could control the situation. （）
A. It‘s none of your business.
B. You‘ll get involved in it.
C. Tim must be thinking about it.
D. Well, if he can‘t control it, no one can.
（）后中国拥有了第一批民航运输飞机。
A. 冯特设计出了飞机
B. 中国民航总局成立后
C. 两航起义
D. 中美建交
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