单选题 Why does the author assert that through travel We only "truly touch one another"?

A、 Because he believes tourism makes it possible for people to help one another.
B、 Because he thinks that sincere learning of a culture is only possible by travel.
C、 Because he believes travel is the only way which can mix up different cultures.
D、 Because he wants to emphasize tourism's powerful effect on combating social problems.

【正确答案】 B

【答案解析】[解析] 事实细节题。文章最后一段说it is only when we shake hands with people from other nations and other cultures that we learn how things really are，因此作者认为只有真正接触才能了解其他国家和文化的真正面目，而要有真实的接触，就需要到这个国家和地方旅游，因此答案选[B]。