采用()技术，既可以防止事故的发生，也可以防止事故的扩大，减少_爱下问搜题

搜题请搜索小程序“爱下问搜题”

问题单项选择题

采用()技术，既可以防止事故的发生，也可以防止事故的扩大，减少事故的损失。

A.隔离

B.故障—安全设计

C.设置薄弱环节

D.救援

答案

参考答案：A

判断题

判断下面的图片与句子是(√)否(×)相符。

( ) 1. Is there a chair in front of the desk? Yes, there is.

( ) 2. What's your principal like? He is young and tall.

( ) 3. What do you have on Tuesday? We have music class.

( ) 4. Are there any mountains in the picture? Yes, there are.

( ) 5. What do you do on Mondays? I often do the dishes.

选择题

May I help ?[ ]

A. you

B. your

C. she