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【单选题】
两个或两个以上的液压缸,在运动中保持相同位移或相同速度的回路称( )。A.
同步回路
B.
调速回路
C.
顺序动作回路
D.
卸荷回路
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反馈参考答案：
举一反三
【单选题】If your credit is not good, the bank will not ___ such a credit card.
A.
give
B.
present
C.
show
D.
issue
【简答题】If your credit (信誉) is good, you will be allowed (use) ______ the credit card.
【简答题】A．Give your credit card information over the telephone. B．Send credit card information in the web site. C．Ask about the credit card company's online rules by telephone. D．Use Card to shopping on...
【单选题】Thank you for becoming a Korea Bank credit card customer. Enclosed is your new credit card. Before using your card, please thoroughly read the enclosed documents (141) your rights and responsibilities...
A.
described
B.
describing
C.
are described
D.
describe
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