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【简答题】
《供电营业规则》规定，在电力系统正常状况下，10千伏及以下三相供电的供电企业供到用户受电端的供电电压允许偏差为额定值的（）。
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皮皮学刷刷变学霸
举一反三
【多选题】确定成倍节拍施工工期的步骤分为( )。
A.
计算流水节拍
B.
计算流水步距
C.
确定专业工作队数
D.
绘制加快的成倍节拍流水施工进度计划图
E.
确定流水施工工期
【单选题】In a certain room, all except 18 of the people are over 50 years of age. If 15 of the people in the room are under 50 years of age, how many people are in the room?
A.
27
B.
30
C.
33
D.
36
E.
It cannot be determined from the information given.
【单选题】Her husband and her eldest son had been killed______.
A.
many years before
B.
many years since
C.
many years ago
D.
many years from now
【单选题】It was ____ I met Mr Green in Shanghai.
A.
many years that
B.
many years before
C.
many years ago that
D.
many years when
【简答题】短文改错﹙10分﹚ Though great progress have been made in science these years, there are still many people live in poor conditions. They make their lives by collecting or selling used things. Their children c...
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