为了防止煤粉中的杂物堵塞叶轮式给粉机，需要在旋风分离器的下粉_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

为了防止煤粉中的杂物堵塞叶轮式给粉机，需要在旋风分离器的下粉管上装设（）

A.罗茨风机

B.防爆门

C.粉筛

D.木头格筛

答案

参考答案：C

补全对话，情景问答

根据所给句子，选择最佳的应答语，每个选项只能用一次

A. Oh, no! Did you get wet?
B. I am. I had a bad morning.
C. Well, first of all I overslept, and by the time I got up, my sister had already gotten in the shower.
D. I've got a birthday present.
E. You're right. You did have a bad day.
F. Sorry, I have no idea.

( ) 1. Hi,  Maria. You look stressed out.
(    )2. What happened this morning?
(     )3. It started raining and I'd forgotten my umbrella.
(     )4. You look so happy. Why?
(    )5. Tom, do you know whether Frank will go to the zoo if it is fine?

判断题

职业道德修养的根本目标是要求从业人员自觉养成高尚的职业道德品质，提高整个社会的道德水平。