问题
填空题
圆锥的侧面是一个______面，把侧面展开得到一个______．
答案
圆锥的侧面是一个曲面，把侧面展开得到一个扇形．
故答案为：曲，扇形．
搜题请搜索小程序“爱下问搜题”
圆锥的侧面是一个______面，把侧面展开得到一个______．
圆锥的侧面是一个曲面，把侧面展开得到一个扇形．
故答案为：曲，扇形．
| 完形填空。 | ||||
| Most American families are smaller than the families in other countries. Most American families have one or two 1 and one or two children each. Children in the U.S. will 2 their parents' home when they grow up. They usually live 3 their parents because they want to find good jobs. They often 4 to their parents or telephone them. And they often go to visit their parents on 5 . Parents usually let their children choose their 6 jobs. Americans think it 7 for young people to decide on their lives by themselves. Children are asked to do some work 8 their house. And in many families, children are 9 for doing some housework so that they can learn 10 to make money for their own use. | ||||
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