目前大型水冷式冷凝器基本上都采用（）用水冷却系统OA、民用 B_爱下问搜题

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问题单项选择题

目前大型水冷式冷凝器基本上都采用（）用水冷却系统O

A、民用

B、工业

C、单一

D、循环

答案

参考答案：D

填空题

从方框中选择恰当的词或短语并用其正确的形式填空。

rise, come, choose, win the prize, be on, draw pictures,
pay for, struggle with, at the beginning, be used to

1. Time for Africa __________ as the 2010 World Cup song, hasn't it?
2. — Jack, coffee or juice?
    — Juice, please. I __________ drinking it.
3. If we don't reduce carbon emission (碳排放) to stop the temperature
    from                  , there will be more disasters.
4. — What a pity! The film __________ for one hour.
    — It doesn't matter. We can see it next time.
5. Tony wants to know how much I ____________ this new dictionary just now.
6. Dad, I'm very nervous because of the ____________ English competition.
7. — Herta Muller is great. She was the winner of the 2009 Nobel Prize for Literature.
    — Yes. She's the 12th woman ____________.
8. __________ of 2010, a 3D film, Avatar was shown all over the world.
9. People in some parts of China ___________ the serious rainstorms at present.
10. — What were the children doing over there?
      — They ___________ to welcome the 41st World Earth Day.

问答题简答题

陷阱类渔具的捕捞原理是什么？