问题
判断题
供电范围较大或有重要用户的低压电网,宜采用保护装置安装在各条引出干线的总保护方式。()
答案
参考答案:对
供电范围较大或有重要用户的低压电网,宜采用保护装置安装在各条引出干线的总保护方式。()
参考答案:对
从方框中选词并用其适当形式填空。 | |
2. She doesn't feel well, and she doesn't want to eat ________. 3. It's time ________ sports. 4. Jim ________ a letter to his pen pal once a month last year. 5. I helped my son do some ________ yesterday evening. |