仿照例子改写句子(英语)
题目
仿照例子改写句子(英语)
Modle:He does some reading in the evening.
He doesn't do any reading in the evening.
(1)The boy are playing football.
(2)He called me yesterday.
答案
The boys aren`t playing football.
He didn`t call me yesterday .
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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