What does the passage mainly discuss?A.The increase of private mail service.B.A comparison

外语类 正确答案 已帮助 人

What does the passage mainly discuss?

A.The increase of private mail service.

B.A comparison of urban and rural postal services.

C.The development of government postal system.

D.The history of postage stamps.

请帮忙给出正确答案和分析,谢谢!

热搜:一个c程序的执行是从本程序的main函数开始