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题目内容
（乐山师范学院第二外语(英语））
Why didn. t some people use the postal service in the 1840s?
A. It was expensive.
B. It was unreliable.
C. There were few post offices.
D. There were no stamps
A. It was expensive.
B. It was unreliable.
C. There were few post offices.
D. There were no stamps
参考答案