负载的电功率表示负载在单位时间消耗的电能。
参考答案：对
两个完全相同的车顶单元式空调机组，制冷量为（）KW，分别安装在车辆的端部。
— How do you usually find out about new software?
— In the magazines like Popular Electronics. That's _____ computer companies usually advertise. [ ]
A. which
B. where
C. what
D. why
