题目

阅读下面短文，回答问题。（可以用完整句子回答，也可简答）  December 25th is Christmas Day. In most countries it is the most important （重要的） day in the year. All the people come back to their homes. On Christmas Day bells ring everywhere. The ringing bell tells people Christmas is coming. People sing and dance day and night. They all have a good time. Most families buy a Christmas tree for their children. And there are some presents in the tree here and there. People also put presents in children's stockings （长筒袜）. In many places, Father Christm大小正方体的体积比是27：8，那么表面积之比是_______．