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【单选题】
下列关于变压器,说法正确的是( )。
A.
变压器是将一种电压等级的交流电能变换为不同频率的另一种电压等级的交流电能 ;
B.
变压器按用途可分为心式变压器和壳式变压器;
C.
根据高、低压绕组排列方式的不同,绕组分为同心式和交叠式两种。
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举一反三
【单选题】If I had time, I _____ to New York.
A.
will go
B.
would go
C.
shall go
【单选题】If I had time, I _____ to New York.
A.
will go
B.
would go
C.
have to go
D.
can go
【单选题】If I had time, I _____ to New York.
A.
will go
B.
would go
C.
go
D.
gone
【单选题】If I had time, I _____ to New York.
A.
will go
B.
would go
【简答题】股票市场价格的最直接影响因素是( ),并且其他因素都是通过作用于该因素而影响股票价格。
【简答题】Complete the sentences with the appropriate verb form. If I have time, I will write some letters. If I had time, I _____ some letters. If I had had time, I _____ some letters.
【判断题】If I had time, I shall see the new film.
A.
正确
B.
错误
【单选题】股票市场价格的最直接影响因素是( ),并且其他因素都是通过作用于该因素而影响股票价格的。
A.
宏观经济因素
B.
公司经营状况
C.
供求关系
D.
政治因素
【单选题】If I had time, I ___French.
A.
will study
B.
would study
C.
shall study
D.
would have stuied
【单选题】If I had time()see that new movie at the University Theatre.
A.
I’ll
B.
I may
C.
I’d