新概念英语第51课摘要写作
题目
新概念英语第51课摘要写作
急
答案
Hugh is so fat that he has gone on a diet.He has forbidden himself all the foods he likes but he has not
lost weight.When the writer visited him yesterday,he hid a large parcel under his desk.The parcel
contained chocolates and sweets.Hugh said that he had to reward himself occasionally because his diet
was so strict.
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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