阅读短文,下列问题

    Today is Saturday. It is Children's Day, I get up very early. I go to school at about six. Our school is very cleanand beautiful. Birds in the trees sing all the time. Every student wears a white coat. Girls wears beautiful skirts. We sing and dance, run and jump. We look like happy birds.

    Our party begins at half past seven. First, we listen to our teachers, and then the programme(节目) begins. Many people sing together on the stage(舞台) . They sing and dance very well. All the teachers and students like watching and listening to them. After the party we play games in the classroom. All of us enjoy the day very much.

读下图，完成下面小题。

刘军同学在历史研究性学习中准备写一篇历史小论文，他从图书馆借来了《康雍乾三朝实录》、《论军机处与极权政治》、《“文字狱”的研究》等书。下列最可能成为论文标题的是(    )

南极大陆素有“冰雪高原”之称。

请根据材料回答下列问题：