把he sold his old car and bought another one three mooths ago.变为否定句,一般疑问句(肯否定回答)
题目
把he sold his old car and bought another one three mooths ago.变为否定句,一般疑问句(肯否定回答)
把I drove the airport carefully on wednesday变为否定句和一般疑问句(肯否定回答)
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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