首先简要概述本文的相关概念，包括自助游、大众游和定制游；其次分析上海黑眼睛旅行社发展的现状，与传统旅行社相比其竞争发展优势所在；最后找到发展中存在的问题，给予相应...

Gatsby was a major officer when he was young, and at that time, he fell in love with a girl named Daisy, who also had a soft spot for him. Unfortunately, Daisy broke up with Gatsby and married a crew called Tom, who was born in a rich family...