欢迎来到PP题库网 PP题库官网
logo

单项选择题

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.
点击查看答案

相关考题

微信小程序免费搜题
微信扫一扫,加关注免费搜题

微信扫一扫,加关注免费搜题