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【单选题】
高质量的导游服务是( )完美的结合。A.
规范化服务与标准化服务
B.
个性化服务与特殊服务
C.
机能服务与心理服务
D.
规范化服务与个性化服务
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【单选题】The load sharing characteristics of two diesel generator operating in parallel are mostly dependent on their governor _____.
A.
load limit settings
B.
idle speed settings
C.
speed limit settings
D.
speed droop settings
【单选题】The load sharing characteristics of two diesel generators operating in parallel are mostly dependent on their governor ______.
A.
load limit settings
B.
idle speed settings
C.
speed limit settings
D.
speed droop settings
【单选题】Two long parallel wires are placed side - by - side on a horizontal table. If the wires carry current in opposite directions,
A.
both wires are lifted slightly
B.
both wires are forced against the table's surface
C.
the wires attract each other
D.
the wires repel each other
【单选题】If two ACgenerators are operated in parallel, the load is distributed evenly by .
A.
a rheostat
B.
a balancing coil
C.
changing field excitation
D.
adjusting the governor settings
【单选题】If two A.Cgenerators are to be operated in parallel, the load is distributed evenly by . A.means of rheostat the governor settings
B.
a balance coil excitation
C.
adjusting the governor settings
D.
changing excitation
【简答题】Two trains running on parallel tracks are 600 miles apart. One train is moving east at a speed of 90 mph, while the other is moving west at 75 mph. How long will it take for the two trains to pass eac...
【简答题】三千六百万零七十写作______，四舍五入到万位，约是______万．
【简答题】三亿零五百万六千写作______，把它四舍五入到亿位记作______亿．
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