火灾自动报警系统的传输线路应采用（）保护方式布线。A、穿金属

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问题多项选择题

火灾自动报警系统的传输线路应采用（）保护方式布线。

A、穿金属管

B、穿普通的硬质塑料管

C、穿经阻燃处理的硬质塑料管

D、封闭式线槽

答案

参考答案：A, C, D

阅读理解

阅读短文，判断对错。

This is a classroom. It's our new classroom. There are some desks and chairs in it. There is a fish bowl

near the window. There are some flowers on the teacher's desk. The teacher's desk is near the door. There is

a blackboard on the wall. It's big and nice. We like our new classroom very much.

( ) 1. This is our classroom.

( ) 2. There is a computer in the classroom.

( ) 3. There is a blackboard on the wall.

( ) 4. The teacher's desk is near the window.

( ) 5. The blackboard is big and nice.

问答题简答题

创造洽谈气氛的策略技巧有哪些？