问题
多项选择题
自动发电控制AGC可完成的任务有（）。
A.维持系统频率为额定值
B.控制地区电网间联络线的交换功率与计划值相等
C.实现各地区有功功率的就地平衡
D.在安全前提下实现机组间负荷经济分配
答案
参考答案：A, B, C, D
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自动发电控制AGC可完成的任务有（）。
A.维持系统频率为额定值
B.控制地区电网间联络线的交换功率与计划值相等
C.实现各地区有功功率的就地平衡
D.在安全前提下实现机组间负荷经济分配
参考答案：A, B, C, D
The summer vacation is the best time for students. They can go outdoors and have fun. They can go to big cities to , or go to the countryside to enjoy the beauty of . Peter is an American middle school student and he loves very much. He always travels in his country. This summer vacation he wants to do . He is interested in Chinese history. he is flying to Beijing and Xi’an for the summer vacation. He is leaving on July 12th and New York on the last day of the month. He plans a fantastic vacation. During the , he is visiting places of interest and going shopping. At night, he is to enjoy the night views. He is sure he will have a time.
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