问题
单项选择题
水轮发电机组能够实现稳定运行，是因为有（）。
A、励磁机的调节；
B、调速器的调节；
C、电压校正的调节；
D、自调节作用。
答案
参考答案：D
搜题请搜索小程序“爱下问搜题”
水轮发电机组能够实现稳定运行，是因为有（）。
A、励磁机的调节；
B、调速器的调节；
C、电压校正的调节；
D、自调节作用。
参考答案：D
| 用所给出的词选词填空，每个词只能用一次。 | |
1. I some clothes to charity because they were too small for me. 2. There's a good movie on TV tonight but it's at 1am. I don't want to that late. 3. I prefer lemons to oranges. I like the taste. 4. I eating ice cream on a hot day. There's nothing better ! 5. Shanghai is cold this time of year. You need to warm clothes if you go there. 6. On weekends I like to ______ at the club with my friends. 7. Sally me to her birthday party. It's at her house on Saturday. 8. She likes cookies. They are hard, dry and easily broken. 9. I hamburgers! They make me feel sick. 10. We're going to Africa on vacation. We to see some elephants. 11. Jim his father. They are both clever and a bit quiet. 12. Do you know where John is? He was going to meet me earlier but he didn't . |