题目内容

一级动火经车间主任检查批准即可动火

A. 正确
B. 错误

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装置生产过程中局部检修动火属二级动火

A. 正确
B. 错误

气相色谱仪由气路单元、分析单元、检测器单元、温控单元和数据处理单元等组成

A. 正确
B. 错误

汽包锅炉因水位低至极限水位而进行紧急停炉后应()

A. 立即大量进水
B. 禁止进行补水
C. 可少量补水
D. 用“叫水法”判明缺水程度后再决定是否补水

Which two statements describe characteristics of IPv6 unicast addressing?()

A. Global addresses start with 2000::/3.
B. Link-local addresses start with FE00:/12.
C. Link-local addresses start with FF00::/10.
D. There is only one loopback address and it is ::1.
E. If a global address is assigned to an interface, then that is the only allowable address for the interface.

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