“学生、平民和城市精英从中国沿海地区向内地的被迫撤退，造成促进‘心理统一’的强大压力，并加强了过去联系微弱的中国社会各阶层之间的认同感”。（《中国的近代化》）这种“心理统一”和“认同感”促成了

我国人口最多的少数民族及分布民族数目最多的省区分别是（    ）

作者对这本小说所享有的发表权的保护期限为(　　)

水、土是立国之本，我国水和耕地资源的分布情况是（　　）

    Mrs White had a problem. Her young son, Timmy, hated to go to bed at night. Mrs White read to him and gave him warm milk, but Timmy refused to fall asleep. No matter what she did, Timmy wanted to stay up. One day Mrs White had an idea.

    Ever since Uncle Charlie had taken him sailing, Timmy wanted to be a sailor. He loved fishing with his father. He loved to watch the waves wash against his hair. “some day,” Timmy said, “I'm going to have my own boat. And I'm going to be the captain.”

    So Mrs White had a boat built—one that could be hung from the ceiling in her son's bedroom. She felt that if he could sleep in the boat, he would want to go to bed at night.

    The boat builder made the boat and hung it in Timmy's bedroom. Timmy loved it.

    Finally Timmy was happy to go to bed.