He well and he want to be a A.cooks;cooker B.can cook;cooker C.cooks;cook D.cook;cook
题目
He well and he want to be a A.cooks;cooker B.can cook;cooker C.cooks;cook D.cook;cook
答案
He cooks well and he wants to be a cook.
答案为C
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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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