写一句过去时的句子并根据此句提五个句题
题目
写一句过去时的句子并根据此句提五个句题
快.
答案
I did it here yesterday.Who did it here yesterday?Where did you do it yesterday?When did you do it here?How did you do it here yesterday?Did you do it here 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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