Good morning, class. Today we're going to discuss the history of the postal service. Many people believe that the first postal system was invented by the Romans, but in fact, it was the Persians who established the first organized courier network around 550 BC. The system used mounted messengers who traveled along the Royal Road, which stretched over 2,500 kilometers. However, the service was only available for royal communications, not for the public. It wasn't until the 19th century that the first public postal service was introduced in Britain, with the invention of the postage stamp.
❓ 강의에 따르면, 페르시아 우편 제도의 주요 한계는 무엇이었습니까?
A. A) 장거리에는 너무 느렸다
B. B) 그것은 오직 왕실과 정부에서만 사용되었다.
C. C) 그것은 도보 전령에 의존했다.
D. D) 그것은 조직적이지 않았다
✅ 正确答案
B) It was only used by the royal family and government