电能表按工作原理分为感应式电能表和电子式电能表。
参考答案：对
If you are not sure how to use the words, you may ______ the words in your handout.
A．pick up
B．deal with
C．refer to
D．look up
家用电器是Ⅳ类耐冲击设备。( )
