These days, few 11-year-olds are allowed to walk to school by themselves. However, 11-year-old Rosalie Atkins is traveling the world alone.

    Rosalie Atkins lives in England. Her parents decided to let her travel alone. This summer Rosalie's mother put her on a plane to Paris with a host family.

    Rosalie spent a week visiting Paris. She visited the Eiffel Tower and Notre-Dame, as well as several museums, markets, and parks. “If I had visited with my parents, we would have seen only the touristy parts of Paris,” said Rosalie. “But because I was staying with a French family I saw more.” Traveling to different countries, Rosalie also expressed the confidence. “I am quite confident when I have to talk to new people, which is a useful social skill, ” Rosalie said.

    Rosalie is glad that her parents allow her to go on adventure() that other kids could only dream of. Rosalie said, “Your parents aren't going to travel with you forever. You have to learn to be independent some day, and in my opinion the sooner the better.”

乡村聚落与城市聚落的根本差别在于（　　）