问题
判断题
电压互感器的二次绕组应有可靠的保护接地。
答案
参考答案：对
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电压互感器的二次绕组应有可靠的保护接地。
参考答案：对
| 短文改错。 | |
| High school in the United States is usually dividing into Two periodsthe first two and three years is called "junior high school" and other is "senior high school". In China, children enjoy free education of nine year, but in the United States, the students enjoy free education until they are of eighteen years old. American children have little difficulty go to senior high school. American high school students could take part in a lot of activity outside of the classroom. The school organize the activities such as joining a music group or a sports team. Certainly, just like we students in China. | 1._________ 2._________ 3._________ 4._________ 5._________ 6._________ 7._________ 8._________ 9._________ 10.________ |