问题
单项选择题
某10kV用户用功负荷为350kW，功率因数为0.8，则应选择变比为（）的电流互感器和电压互感器。
A、30/5、10000/100
B、50/5、10000/100
C、75/5、10000/100
D、50/5、10000/57.7
答案
参考答案：A
搜题请搜索小程序“爱下问搜题”
某10kV用户用功负荷为350kW，功率因数为0.8，则应选择变比为（）的电流互感器和电压互感器。
A、30/5、10000/100
B、50/5、10000/100
C、75/5、10000/100
D、50/5、10000/57.7
参考答案：A
| 用所给词的适当形式填空。 | |
1_____ was Elvis Presley. Others were Buddy Holly and Chuck Berry. Now almost every country has many rock and roll 2_____ and singers. Some fans who like rock music think that classical music is 3_____. Many fans play rock music very 4_____. Loud music can make these people crazy (发狂). Many fans also like to 5_____ rock and roll. Rock and roll are popular in the world. |