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【简答题】
大型变压器有过励磁保护,能反应系统________或________两种异常运行状态。
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皮皮学刷刷变学霸
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【单选题】What is the most common problem associated with clutches?
A.
The friction material on the disk wears out.
B.
The friction material on the disk lasts too long.
C.
The friction material on the disk makes a whining noise.
【单选题】What is the most common problem associated with clutches?
A.
The friction material on the disk makes a whining noise.
B.
The friction material on the disk wears out.
C.
The friction material on the disk lasts too long.
【单选题】What is the most alarming consequence of the fast growing population?
A.
Species are dying out at an unnatural high speed.
B.
Living areas for wildlife are disappearing rapidly.
C.
The global weather is becoming warmer.
D.
All kinds of natural resources are draining.
【单选题】What is the most reasonable role-reversal situation?
A.
The child becomes the breadwinner in a family.
B.
The man stays at home while the woman goes out to work.
C.
The mother becomes a drunkard while the father abstains from drinking.
D.
The child bosses his mother and refuses to do what he should.
【单选题】听力原文：What is the most important thing to do when fire breaks out in a tunnel? (36)
A.
Detect the smoke quickly.
B.
Take quick action.
C.
Close the tunnel.
D.
Install a Robogat.
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