问题
单项选择题
在机组运行期间，以及正常或事故停机过程中，甚至在停机后一段时间内，需要连续供电并具有恒频恒压特性的负荷，属于（）。
A.Ⅰ类负荷
B.Ⅱ类负荷
C.事故保安负荷
D.不间断供电负荷
答案
参考答案：D
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在机组运行期间，以及正常或事故停机过程中，甚至在停机后一段时间内，需要连续供电并具有恒频恒压特性的负荷，属于（）。
A.Ⅰ类负荷
B.Ⅱ类负荷
C.事故保安负荷
D.不间断供电负荷
参考答案：D
Jim Green works in the hospital. Last weekend he __41___ go to work. On Saturday morning his father ___42__ to him, “Jim, go to the city and to see my best friend, Mr. Vickers. Here is his 43 . His home is near the station.” Jim went to the city __44__ train. He got off (下车) the train and thought, “Mr. Vicker’s 45 is near the station, I can __46 _ it easily.” But after an hour he couldn’t find it. 47 he stopped and asked an old man. The old man said, “Just go along this street, __48__left at New Zoo, and the house is __49__ your right.” Three weeks 50 , his father told him __51__ Mr Vickers again. He had to __52__ someone for the way when he didn’t find the house. He stopped the 53 man. He was _54_ and said, “Are you still __55__ that place, young man?”
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