问题
单项选择题
存放重要档案资料的库房，平时房内无人，但需要设空调全年运行，应采用( )空调系统。
A．直流式
B．封闭式
C．一次回风式
D．二次回风式
答案
参考答案：B
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存放重要档案资料的库房，平时房内无人，但需要设空调全年运行，应采用( )空调系统。
A．直流式
B．封闭式
C．一次回风式
D．二次回风式
参考答案：B
How is the weather in Xinjiang? Xinjiang is 1 the west of China. The weather there is very 2 . It’s cold in the morning, 3 it turns warm at noon. You must have 4 the famous saying, “Put on your leather coat in the morning but put on your shirt in the 5 of the day. And you can eat watermelons at the fire.” It means the weather changes very 6 . It rains little so it’s also very 7 there. And the fruit there is very sweet 8 there is lots of sunshine. Xinjiang is also famous 9 its grapes (葡萄). Mutton (牛肉) is Xinjiang’s popular food. Roast mutton is very delicious. 10 you go to Xinjiang one day, remember to try it.
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