Frank can cook meals (改为否定句) It is really boring (改为一般过去时态) 翻译;我不得不去上钢琴课
题目
Frank can cook meals (改为否定句) It is really boring (改为一般过去时态) 翻译;我不得不去上钢琴课
答案
Frank can‘t cook meals.
It was really boring.
I have to go to have piano lessons.
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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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