Today we're going to discuss the history of the postal service. Interestingly, the first organized postal system was established in Persia around 550 BC. However, it wasn't until the 19th century that the modern postage stamp was introduced. In 1840, Britain issued the Penny Black, which was the first adhesive stamp used in a public postal system. This innovation allowed people to prepay for mail delivery, which greatly increased the efficiency and accessibility of sending letters. Before this, recipients usually paid the postage, which often led to refusal of delivery due to high costs.
❓ 1840年引入邮票的主要优势是什么？
A. A. 它降低了邮件投递的成本。
B. B. 它允许寄件人预付邮资，提高了效率。
C. C. 它使邮政服务向公众开放。
D. D. 它消除了对邮政工人的需求。
✅ 正确答案
B. It allowed senders to prepay for delivery, increasing efficiency.