急救 该写句子把句子的指示代词明确
题目
急救 该写句子把句子的指示代词明确
1.Sally told Sarah that she needed to work on her spelling.
2.The lobby of the old hotel was dimly lit with a crystal chandelier.It was dingy and needed repair.
3.Students like mathematics teachers because they are practical.
4.She traced her ancestry back to the original president of the college,which her roommate thought was unfair
5.After Father brought Todd back from the football game,we took pictures of him.
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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