问题
单项选择题
已知某三相异步电机输入功率为650kW，电压6kV，功率因素cosφ=0.85，则该电机的电流应为（）A。
A、62.5
B、73.6
C、108.3
D、127.5
答案
参考答案：B
搜题请搜索小程序“爱下问搜题”
已知某三相异步电机输入功率为650kW，电压6kV，功率因素cosφ=0.85，则该电机的电流应为（）A。
A、62.5
B、73.6
C、108.3
D、127.5
参考答案：B
One day I found that my computer disappeared(消失). I looked for it everywhere. I asked, “Where is my computer?” Dad rushed into my room and shouted at me , “Your computer? I sold it! I found you were spending too much time playing online games!” I was very unhappy, but I knew it was to beg(乞求) him for my computer. All day long, I did but sit in front of my desk. Thinking of my homework and reports, I was even more . I couldn’t look up information on the Internet. What was more, getting used to typing(打字) on the computer, I wrote so just like a primary school student. I usually spent more than four hours talking with my friends online. But what could I do now? I to go out and talk a walk. I walked into a park. I saw kids playing or doing exercise in the park and having fun. I suddenly felt . “How long ago did I last come to this park?” I asked myself. I used to play in the park every afternoon with my classmates. We played basketball and had a lot of fun. What happened to me? can I choose to lock myself in a room in front of a computer, wasting my time, doing nothing useful? I am a .
|