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【单选题】
根据220千伏及以上电网继电保护整定计算的基本原则和规定，对于220千伏及以上电压电网的线路继电保护一般都采用（）原则。A.
近后备
B.
远后备
C.
以近后备为主、远后备为辅
D.
以远后备为主、近后备为辅
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【简答题】我国著名幼儿教育家( )于( )年创办我国最早的幼儿教育实验中心——南京鼓楼幼稚园。
【单选题】Oliver still bought some goldfish ________he found it difficult to raise them.
A.
because
B.
since
C.
though
D.
until
【单选题】It was not until this year _____ scientists managed to make a cat and a goldfish disappear from sight using an invisibility cloak(斗篷)
A.
that
B.
when
C.
while
D.
As
【单选题】The cause of the death of the goldfish was most probably ______.
A.
lack of care
B.
old age
C.
the small fish tank
D.
lack of water
【单选题】This kind of goldfish can ___ rapidly.
A.
Multiple
B.
reproduction
C.
multiplication
D.
multiply
【单选题】Guess the connections between goldfish and computers.
A.
Goldfish become more intelligent when they live near computers.
B.
People concentrate better when they have a pet goldfish next to their computer.
C.
Computers are making people's concentration similar to golfish.
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