题目内容

用氧化微库仑法测定硫含量时,其中硫的转化率不应低于()

A. 50%
B. 65%
C. 75%
D. 80%

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低压控制系统中采用的控制继电器大部分为电磁式继电器。这是因为它()、能满足及一般情况下的技术要求。

A. 结构复杂
B. 价格较贵
C. 结构简单
D. 价格低廉

推广人员办理信用卡时,应视作有效证明文件的是()。

A. 还有一个月到期的身份证
B. 单位开具的收入证明,开出日期距申请进件日大于等于1个月
C. 临时身份证
D. 暂住证距有效期大于一个月

You have the following online redo log configuration: Group Member 1 ’/disk1/oradata/redo01a.log’ 2 ’/disk2/oradata/redo02a.log’ 3 ’/disk3/oradata/redo03a.log’ You decide to multiplex the online redo log groups for recovery of redo log files in case of any disaster. Which two statements will you NOT issue to multiplex the online redo log files?()

ALTER DATABASE ADD LOGFILE MEMBER ’/disk1/oradata/redo01b.log’ TO GROUP 1;
B. ALTER DATABASE ADD LOGFILE MEMBER ’/disk2/oradata/redo01b.log’ TO GROUP 1;
C. ALTER DATABASE ADD LOGFILE MEMBER ’/disk1/oradata/redo02b.log’ TO GROUP 2;
D. ALTER DATABASE ADD LOGFILE MEMBER ’/disk2/oradata/redo02b.log’ TO GROUP 2;
E. ALTER DATABASE ADD LOGFILE MEMBER ’/disk1/oradata/redo3b.log’ TO GROUP 3;
F. ALTER DATABASE ADD LOGFILE MEMBER ’/disk2/oradata/redo3b.log’ TO GROUP3;

葡萄牙立法机关实行一院制。

A. 正确
B. 错误

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