地面热量交换方式：（）；（）；流体运动热交换（对流、平流、乱流）；（）。
参考答案：辐射热交换；传导热交换；潜热交换
With the electricity _____ because of the road repairs,the whole building was completely dark. [ ]
A. cut up
B. cut off
C. cut out
D. cut down
