某同学测定溶液的pH时，用蒸馏水洗涤玻璃棒后，立即蘸取试样点在干燥的pH试纸中部，观察颜色并与标准比色卡对比进行检测．
⑴Where is the school? ____ A. I read books.
⑵How tall is your mom?____ B. He's a postman.
⑶What did you do last Monday?____ C. It's next to the library.
⑷What does your uncle do?____ D. 1. 65 meters.
⑸Do you like watching TV?____ E. Yes，I do.
— Yes, now English the first language in England and some other countries.
下列关于电功和电功率的说法正确的是（ ）
