I know that if I can pass all my (1),I will some day get an important (2) in some professions.
题目
I know that if I can pass all my (1),I will some day get an important (2) in some professions.
A.lessons B.examinations C.experiments D.roads
A.ordinary B.famous C.boring D.polite
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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