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【多选题】
电力变压器的控制开关( )。A.
油开关
B.
负荷开关
C.
隔离开关
D.
真空开关
E.
六氟化硫开关
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皮皮学刷刷变学霸
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【简答题】润湿滞后
【简答题】润湿滞后(wetting hysteresis)
【单选题】In all，6 000 companies are __________ in producing the parts that are needed for these aircraft．
A.
eoncemed
B.
recommended．
C.
involved
D.
offended
【简答题】动润湿滞后
【单选题】All is needed is a supply of oil.A．the thingB．thatC．whatD．which
A.
All ____is needed is a supply of oil. A．the thing
B.
that
C.
what
D.
which
【单选题】Construction is expanding all over China, no doubt many materials will be needed at a very big amount in future.
A.
China, no doubt many materials will be needed for a very big amount
B.
China, no doubt many materials will be needed in a very big amount
C.
China no doubt many materials will be needed in large amounts
D.
China no doubt many materials will be needed for large amounts
【简答题】润湿滞后
【单选题】All __________is a continuous supply of the basic necessities of life．A.which is needed###
A.
All __________is a continuous supply of the basic necessities of life． A.which is needed
B.
the thing needed
C.
for our needs
D.
that is needed
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