用at once ,at a loss ,at last ,at present ,at home...造句.连起来可做一篇小短文.
题目
用at once ,at a loss ,at last ,at present ,at home...造句.连起来可做一篇小短文.
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答案
At present,I stayed at home and just finished my homework.I am at a loss about what I can do afterwards.Then,I made a call to my best friend and at once,he came to my home.At last,we have been watching movies for a whole day.
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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