首字母填空1）l have the r_____ to know the truth of the accident 2)We r_____go out for lunch because our s
题目
首字母填空1）l have the r_____ to know the truth of the accident 2)We r_____go out for lunch because our school provides delicious lunch for us.3)She is very kind to others and is always r_____to help other.4)He did not think she could r_____his car in the snow.
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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