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【单选题】
家里使用的笔记本电脑属于( )计算机。A.
微型
B.
小型
C.
大型
D.
工作站
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【简答题】When we had our class, our psychology teacher would take any liquid medicine from a tiny bottle. This touched the whole classes. We thought that he should ask for leave and stayed at home for a rest, ...
【单选题】How is an artificial fog made in the movies?
A.
By passing steam over dry ice.
B.
By turning ordinary ice into steam.
C.
By melting dry ice.
D.
By mixing dry ice with ordinary ice.
【单选题】Why does the author mention refrigeration in paragraph 6?
A.
To show how the steam engine contributed to refrigeration
B.
To illustrate the standard of living of North America and Europe
C.
To give an example of an innovation that expanded markets
D.
To argue that refrigeration was the most important invention of the time
【简答题】发光二极管简称 ,经常使用的发光二极管管脚引线较长者为 ,引线较短的为 。
【单选题】If a boiler is isolated from the steam-using system, how must it be kept?
A.
ln closed dry storage.
B.
Completely full of treated water.
C.
Under a low steam pressure
D.
Any of the above
【简答题】We once had a poster competition in our fifth grade art class. “You could win prizes,” our teacher told us as she wrote the poster information on the blackboard. She passed out sheets of construction ...
【简答题】Steam cracking is endothermic. How to supply the heat needed?
【简答题】How is steam generated in a fossil-fueled power plant?
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