题目内容

柔性风管安装时，应用于支管安装的铝箔聚酯膜复合柔性风管长度应小于（）

A. 6m
B. 5m
C. 8m
D. 10m

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更多问题

计算题：已知某工件的尺寸外径为φ80mm，内径为φ50mm，长为30mm，求该工件的有效加热厚度。

间弦《明君》多少拍？

关联思维法

You are working with a client to classify the different types of application traffic they will have on their network and to assign a QoS value to each traffic flow. The client has identified the following applications: Internet traffic, Oracle, network-based backups, AOL Instant Messenger, IP routing, voice, and voice signaling. Given these types of applications, how many different classes will need to be configured in QoS?（）

A. 8
B. 6
C. 9
D. 5