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单项选择题

A.

B.

C.

D.

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单项选择题

What should you do if you have lost your credit card?
A、Contact your bank and report loss.
B、Apply for another credit card.
C、Let it go.
D、Borrow a credit card from someone.
判断题

辙叉角α越小，列车侧线通过道岔时就越平稳
答案： 正确
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