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【单选题】
鼠笼式异步电动机空载运行与满载运行相比,起动转矩()A.
增加
B.
减小
C.
不变
D.
不确定
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A.
taller
B.
stronger
C.
heavier
D.
All of the above
【简答题】能力拓展 1.Read and tick or cross.读短文,判断对(T)错(F)。 Hello, I'm a Chinese boy. My name is Ming Ming. I'm 12 years old. I'm 160cm tall and I'm 45kg. I like drawing pictures. Every morning, I go to school with...
【简答题】阅读理解 Within a few short years, girls in Europe have be－come heavier smokers than boys according to a British study presented (递交) last week to an international conference on smoking. Antismoking activ...
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