The cat is lying on the sofa while I am watching TV at home.或The cat often lies on the sofa after I
题目
The cat is lying on the sofa while I am watching TV at home.或The cat often lies on the sofa after I
The cat is lying on the sofa while I am watching TV at home.或The cat often lies on the sofa after I watchTV at home.这两句话对吗?如果错了,错在哪里?
答案
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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