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问题 单项选择题

公共建筑内厨房的排油烟管道宜按防火分区设置，且在与竖向排风管连接的支管处应设置公称动作温度为（）的防火阀。

A.70℃

B.90℃

C.150℃

D.280℃

答案

参考答案：C

单项选择题

再吸收塔C15203的1#液封槽Z15201取液位置是C15203的（）收液槽上部的N18管口处（自上而下）。

A、Ⅰ

B、Ⅱ

C、Ⅲ

D、Ⅳ
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填空题

  • A. Can you recommend me some good web sites
  • B. Are you sure
  • C. It affects children.
  • D. Are you fond of it
  • E. My friends usually contact me through them.
  • F. What are you doing there, Ann
  • G. You are very kind.
  • H. Actually I’m crazy about it.

    Bob: (56)

    Ann: I’m just checking my emails. (57)

    Bob: So do my colleagues. It’s very convenient.

    Ann: By the way, do you often get on the Internet

    Bob: Yes, I do it almost every day. What about you (58) .

    Ann: Sure. (59)

    Bob: What do you usually do

    Ann. Everything, such as checking emails, chatting with friends, paying bills, etc.

    Bob: Interesting. (60)

    Ann: OK. If you want to buy something cheap, you can use www. cheap, com.

57()
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