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【单选题】
在积极式给纱装置中，传动比的改变是通过改变（）来实现的。A.
旋转螺旋调节盘A
B.
该变滑块的进出位置
C.
改变无级变速盘机构的传动半径
D.
改变槽盘的B槽数
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举一反三
【单选题】Payment may be made in any of the following ways, _____ cash, ____ cheque, or _____ credit card.
A.
by; in ; by
B.
by; in; with
C.
in ; by; with
D.
in ; by; by
【简答题】FBI汉语名称是
【单选题】听力原文：The holder of credit card can buy goods against the card at any shop that has joined the scheme without cash. (9)
A.
The credit card can be used at any shop without paying cash.
B.
The credit card can he used at any appointed shop together with cash.
C.
The credit card can be used at any appointed shop without paying cash.
D.
The credit card can be used to withdraw any amount of cash.
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