they plan to stay there for two weeks否定句,for two weeks划线部分提问
题目
they plan to stay there for two weeks否定句,for two weeks划线部分提问
答案
they don't plan to stay there for two weeks
how long do they plan to stay there
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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