无料钟设置中心波级管的目的主要是为了便于安装。（）
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不得使用1台局部通风机同时向2个作业的掘进工作面供风。
A. 正确
B. 错误
Which two statements about Cisco Security Management Suite are correct?（）
A. It should be implemented in a management VLA
B. Its connection to managed devices should be over a data VLA
C. It is made up of Cisco Security MARS and Clean Access software.
D. It should be deployed as close to the edge of the network as possible.
E. It delivers policy administration and enforcement for the Cisco Self-Defending Network.
远端小管和集合小管的功能受到____和____两种激素的调节。
用分层法计算一个5层框架的内力，计算单元也应分成5个。
A. 正确
B. 错误
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