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(1). (单选题)

Why is it useful to carry enough 25-cent coins with you?
(本题2.0分)
A、

They can act as small change for the-exact bus fares.

B、

There is- generally no problem in using them in Canada.

C、

As a basic unit of money, they are gradually gaining in usage.

D、

They may come in handy for pay phones or laundry machines.

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出自：河北建筑工程学院-大学英语2（高起专）

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