新概念第一册55课课文~hurry up
题目
新概念第一册55课课文~hurry up
答案
Lesson 55 The Sawyer family
The Sawyers live at 87King Street.In the morning,Mr.Sawyer goes to work and cht children go to school.Their father takes them to school every day.Mrs.Sawyer stays at home every day.She does the housework.She always eats her lunch at noon.In the afternoon,she usually sees her friends.They often drink tea together.In the evening,the chirdren come home from school.They arrive home early.Mr.Sawyer comes home from work.He arrives home late.At night,the children always do their homework.Then they go to bed.Mr.Sawyer usually reads his newspaper,but sometimes he and his wife watch television.
举一反三
已知函数f(x)=x,g(x)=alnx,a∈R.若曲线y=f(x)与曲线y=g(x)相交,且在交点处有相同的切线,求a的值和该切线方程.
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
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