电气运行值班人员进行手动同期并列时，操作前应确知用于并列断路器的合闸时间，计算好同步表指针提前合闸的（）然后再进行操作，合闸并列。
参考答案：角度
根据句意及所给提示完成单词。
1. That sounds i______. I like it very much.
2. —How o______ do you come to school late?
—Never.
3. The teacher gave us some ______ (建议) on how to learn English.
4. I had a toothache. So I had to go to the d______.
5. What are you ______ (计划) to do there?
6. ______ (袋鼠) come from Australia.
7. It's i______ for us to learn English well.
8. U______, he was hurt (受伤) in the car accident.
9. We should try to keep the b______ of nature.
10. The workers ______ (建设) a bridge over the river.
在原料一定的情况下，白汤与清汤的煮制，与（）的关系最为密切。
A．时间
B．火候
C．设备
D．调味
