本题目来源于试卷: Physics Unit15: Laws of Thermodynamics，类别为 国际高中通用物理
[单选题]
The coefficient of performance (COP) of a heat pw + noup gm9 uf;v0 1hd,++naory252zgybx5y uump is defined as the r xq(t nxdi5n;4za5c8q atio of
A. the heat delivered to the inside to the heat taken from the outside.
B. the heat taken from the outside to the heat delivered to the inside.
C. the heat delivered to the inside to the work done to move the heat.
D. the heat taken from the outside to the work done to move the heat.
参考答案: C
本题详细解析:
暂无
| 
