问题
单项选择题
在额定频率、额定功率因数及二次负荷为额定值的（）之间的任一数值内，测量用电压互感器的误差不得超过规程规定的误差限值。
A、20％-100％
B、25％-100％
C、20％-120％
D、25％-120％
答案
参考答案：B
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在额定频率、额定功率因数及二次负荷为额定值的（）之间的任一数值内，测量用电压互感器的误差不得超过规程规定的误差限值。
A、20％-100％
B、25％-100％
C、20％-120％
D、25％-120％
参考答案：B
| 完形填空。 | ||||
| Traffic is very important. It means everything and everybody is using the roads. Today more and 1 people live in the cities. So there is 2 traffic and usually not enough 3 , and 4 of the roads are too narrow (狭窄的). That is 5 there are a great many accidents. In cities 6 over the world thousands 7 people die or 8 hurt in accidents. Of course, traffic accidents can't often 9 in the countries, because there is not 10 much traffic, so there are not so many accidents. Each of us should care for our lives (生命). | ||||
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