When we talk about our grandparents, the first word we can remember is "old". Super Grandmother and Super Grandfather contest (比赛) gives old people a chance to show their talents to us. What is this contest like?

    Every year, people aged over seventy, from all over Georgia, come to Tbilisi to take part in Super Grandmother and Super Grandfather contest. Some play the piano, some dance, some sing and some perform plays. Although they are very old, they perform very carefully. In fact, some of their programmes are good and they are even invited to television shows.

    In this year's contest, 80-year- old Tsuri Kakabadze got the title of "Super Grandmother" because she had a beautiful voice. And 77-year-old Yuri Merabov got the title of "Super Grandfather" because he played the piano well.

    But the results do not really matter. These old people just come to have some fun. I hope this kind of contest should be all over world. Don't you?

如图所示晚上，在桌面上铺一张白张，把一小块平面镜平放在纸上，让手电筒的光正对着平面镜照射，则从侧面看出 

我国著名数学家陈省身先生93岁生日时，还公布了他的最近研究成果。他以此为乐，认为自己每天都在感受着最美的学问。这给你的启示是（    ）

斯塔夫里阿诺斯《全球通史》：“拿破仑在其所征服地区都贯彻法国革命的一些基本原则，他废除封建制度和农奴制，承认所有公民的平等，实施其著名的法典。”这段材料反映了拿破仑（   ）