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【单选题】
并联运行的同步发电机调节 实现无功功率的调节;调节 实现有功功率的调节。
A.
油门/油门
B.
励磁电流/油门
C.
油门/励磁电流
D.
励磁电流/励磁电流
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【简答题】free of charge
【单选题】free of charge
A.
免除罚金
B.
免费
C.
自由赔偿
D.
自由索赔
【单选题】The definition of( ) is a law which is enacted by the legislative branch of a government such as Congress or a state legislature and generally signed into law by the president or a governor.
A.
regulation
B.
statute
C.
ordinance
D.
order
【单选题】According to the definition,Health is described _____ "a state of complete physical, mental, and social well-being".
A.
on
B.
as
C.
for
D.
of
【多选题】关系 R 中能唯一标识一个元组的是它的( )
A.
主码
B.
候选码
C.
外码
D.
全码
【单选题】free of charge
A.
收费
B.
免费
【判断题】The definition of “international traffic” does not apply when a ship or aircraft is operated between two places in a Contracting State and the enterprise that operates the ship or aircraft is not an e...
A.
正确
B.
错误
【简答题】be free of charge
【单选题】free of charge
A.
负责
B.
自由
C.
收费
D.
免费
【单选题】By mentioning the definition of waste, the author intends to_____.
A.
clear the misunderstanding of its meaning and its coverage
B.
state that people tends to 'like the new and hate the old'
C.
manifest the fact people don't record things about rubbish by sarcasm
D.
prove that ignorance can lead to terror and inaction
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