how dangerous!she was diving the car with one hand and holding an icecream with 1.the other
题目
how dangerous!she was diving the car with one hand and holding an icecream with 1.the other
2.another 3.others 4.other
答案
选第一个
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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