检查低压电动机定子、转子绕组各相之间和绕组对地的绝缘电阻，用500V绝缘电阻测量时，其数值不应低于0.5MΩ，否则应进行干燥处理。
参考答案：对
情景交际
A: Hi, Jack! Did you have 1 yesterday?
B: No, I had a bad day.
A: 2 ?
B: I lost my MP3 0n my way to school. And when I got to school, the class had begun.
A: Have you found it?
B: No, 3 yet.
A: Bad luck!
B: The worst of all, when I 4 , I realized that I had left my keys at school and my parents had gone to Beijing.
A: 5_ unlucky! Don't think about it. Let's play football together.
马鹿茸具有2个侧枝的称为（）
A、二杠
B、莲花
C、二岔
D、大挺
E、门庄
