题目

设a=,b=,c=,则a、b、c的大小关系是________________. 答案：a＜b＜c解析：化为同根指数幂再比较.任务型阅读阅读下面短文，根据短文内容，完成下列表格中所缺信息，每空一词。Andy was born in China 17 years ago. In 2007, she went to the USA with her family. As a high school student, she has found many differences between Chinese and Americans：About moneyAmericans like to spend more than they have, so many of them are always in debt(欠债). But Chinese usually spend less than they have, so many of them always have money left in the bank.The American kids themselves make their own money. Most Chinese kids always ask their parents for money.About educationMany American students have less homework to do while many Chinese students have much.Many American girls take part in sports, dancing and singing groups while many Chinese girls take part in study groups.Many American parents think it is unnecessary to send their children to an expensive school. It’s different in China. Many Chinese parents would try their best to send their children to expensive schools though their family isn’t rich enough.About friendsMost American parents let their sons or daughters make friends by themselves. They never ask them about their friends while Chinese parents are usually interested in knowing more about their children’s friends, and usually stop them from staying out too late with friends.1. between Chinese and AmericansChineseAmericansMoneyChinese usually have some money left in the bank2. they spend less money than they have.Many Americans usually borrow money from the banks because they3. more than they have.Chinese children get money from their 4. .Children usually make money by 5. .EducationParents usually do their 6. to send their children to study in expensive schools.Many parents think it isn’t7. to send their children to an expensive school.Chinese girls join in 8. groups.Many girls exercise, dance and 9. together.FriendsParents are usually10. in knowing more about their children’s friends.Most parents never pay attention to their children’s friends.