问题
判断题
三相四线380/220V低压供电系统中采用中性点直接接地、引出N线或PEN线。（）
答案
参考答案：对
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三相四线380/220V低压供电系统中采用中性点直接接地、引出N线或PEN线。（）
参考答案：对
选择正确的词填空，可重复使用。
—Yes, she does. 2.—_____ you spell the word? —Sorry, I can't. 3._____his grandparents like vegetables? 4.—Where_____ I? —You_____ in a new place. 5.—What_____your uncle love7 —He loves sports. 6. I _____a student. My name_____Li Hong. 7. She_____my friend. Her name_____Wang Mei. 8. —Where_____ your balls? —They _____under the bed 9.—_____ those apples? —Yes, they _____. 10. On Sunday, I _____ watch TV. I must (必须) do my homework (作业). |