进入有毒、有害和易燃、易爆泄漏事故现场进行侦检和设立警戒区的_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

进入有毒、有害和易燃、易爆泄漏事故现场进行侦检和设立警戒区的人员，在没有弄清楚泄漏物质的名称和性质前，必须进行()个人防护，其他人员应根据侦检情况，确定相应的防护等级。

A、低等级

B、中等级

C、高等级

D、初级

答案

参考答案：C

选择题

观察下图，图中的学生应该[ ]

A．顶撞老师

B．不理睬老师

C．不再值日，丢下脸盆回家

D．主动与老师沟通，向老师解释

补全对话，情景问答

Choose the best response from A to F according to the sentences given. Each choice should be used only once.

(    )1. I'm sorry I can't follow you.
(    )2. Would you mind my smoking here?
(    )3. Hello. Could I speak to Mr. Smith?
(    )4. Let's go to the park.
(    )5. Thank you for carrying the heavy box for me.

A. You'd better not.                                         B. Good idea.
C. It's my pleasure.                                          D. Hold on, please.
E. I'll say it again.                                             F. It doesn't matter.