什么是电力需求侧管理？其作用是什么？
参考答案：
电力需求侧管理（DMS）又称为电力需求方管理或负荷管理，是指电力公司采用有效的激励和诱导措施以及适宜的运作方式，与客户共同协力提高终端用电效率，改变用电方式，为减小电量消耗和电力需求所进行的管理活动。
电力需求侧管理的作用是：
（1）改善电网的负荷特性，提高用电负荷率：
（2）降低电力客户的用电成本，减小电费支出；
（3）有利于扩大用电需求，开拓电力市场；
（4）减小污染排放，提高人民的生活质量。
| 根据短文内容，用方框中所给的单词填空。 | |
the Asian record with a time of 6'39"71. His fans came to 2 him and asked him whether he liked skating when he was very young. Then he told 3 a story. "In fact,I didn't like skating at all when I was young. On a winter day in December,it snowed 4 and the weather got very cold. I didn't. know how to spend my Saturday. Then I turned on the TV and saw some 5 skating on the lake. I thought, "They're really cool! I will start to skate, too. " Then I put on my coat, took my brother's skating shoes and went out. " "I learned very quickly. A month later, I could skate very well. From then on, I liked it very much. " |