单项选择题

A. The postal service failed.
B. The postal service has developed a system.
C. It remained the same.
D. The postal service has developed all over the country.
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单项选择题
A. Because the horse and wagon were slow. B. Because the trains were too fast. C. Because some towns were far away. D. Because the communities didn’t like it.
A. Because the horse and wagon were slow.
B. Because the trains were too fast.
C. Because some towns were far away.
D. Because the communities didn’t like it.
单项选择题
What does the author say about wind farms in Britain
A. The gain does not equal to the loss.
B. They can help solve world’s energy problems.
C. They would be perfect if they take up smaller space.
D. They will waste the government lots of time and money.
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