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【简答题】
三相对称负载,当电源电压为 380V 星形联结,当电源电压为220V 时,作三角形联结,则三角形联结的功率是星形联结的( )倍。
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【单选题】How many colonies did Britian establish in North America by the mid-18th century?
A.
10
B.
8
C.
15
D.
13
【单选题】Jack Gallant lends ε10,000 to his business partner Alex Wood. In exchange, Wood gives Gallant shares of preferred stock in MM Inc. paying ε500 per year in dividends, and he agrees to repay ε6,000 to G...
A.
5%
B.
10%
C.
15%
【简答题】是元音1-8号,不是拼音。
【单选题】______is the only predominately French-speaking territory in North America.
A.
Quebec
B.
The Prairie Provinces
C.
The Province of British Columbia
D.
New Brunswick
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