题目内容

国家规定的邮寄烟叶的限量为()。

A. 1公斤
B. 2公斤
C. 5公斤
D. 10公斤

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You work as a database administrator for Certkiller .com. In your development environmentenvironment, the developers are responsible for modifying the table structure according to the application requirements. However, you want to keep track of the ALTER TABLE commands being executed by developers, so you enable auditing to achieve this objective. Which two views would you refer to find out the audit information?()

A. DBA_AUDIT_TRAIL
B. DBA_AUDIT_SESSION
C. DBA_FGA_AUDIT_TRAIL
DBA_COMMON_AUDIT_TRAIL

霉菌只能以无性孢子的方式进行繁殖。

A. 正确
B. 错误

电力变压器铁芯发生多点接地故障后如何进行处理?

屋面的金属物体可不装接闪器,但应和防雷装置相连。

A. 正确
B. 错误

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