负荷曲线有什么用途?
参考答案:
为了保证供电的可靠性及电能质量,尽量减小电网损失,搞好电力系统的调度,必须掌握负荷曲线;
另外日负荷曲线也是发电厂内考虑和安排生产的依据。
用所给单词的适当形式填空。
1. There isn't ( someone) at the school gate.
2. Can you see any ( mouse) in the room?
3. Don' t forget to turn off the light before (go) out.
4. She is too shy, so she doesn't know what ( say) .
5. Li Ping often helps me ( do) my homework .
属于阴之症状的是()
A.声高气粗
B.多言躁动
C.面色鲜明
D.脉细弱
E.苔黄燥