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【单选题】
（2011年湖南怀化，9题）下列灭火方法中，不正确的是A.
油锅着火用锅盖该灭
B.
木材着火用水浇灭
C.
电器着火用水扑灭
D.
实验桌上洒出的酒精着火用湿布盖灭
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【简答题】Every human being, no matter what he is doing, gives off body heat. The usual problem is how to dispose of it. But the designers of the Johnstown Campus of the University of Pittsburgh set themselves...
【单选题】What is heat, which causes a change in the state of a material without a change in temperature, called________
A.
Latent heat
B.
Sensible heat
C.
Superheat
D.
Regular heat
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