有关我国的疆域、人口、民族的叙述，正确的是（    ）

根据短文理解,完成下了各题。

    Do you know the little boy in the picture? Let me tell you. His family name is Zou. His first name is Mingxuan. You can call him "Xuanxuan". He now lives（居住） in Hong Kong with his family.

    His father's name is Zou Shiming. He is a boxer(拳击运动员). Xuanxuan's mother is Ran Yingying. She is a host(主持人) of CCTV. Xuanxuan has a brother, and his name is Zou Minghao.

    Xuanxuan was born(出生) in 2011. Minghao was born in 2013.

In July, 2015, Xuanxuan and his father take part in the program(节目) Where are we going, Dad?(爸爸去哪儿) in Hunan TV. Many people in China like this TV program. They all like Xuanxuan because he is very cute(可爱的).

下列各图中，∠1与∠2是对顶角的是（　　）

中国的活字印刷术比欧洲要早约（    ）