几题简单的单词拼写
题目
几题简单的单词拼写
The k_____ to 3×4 is 12.
I p_____ playing outdoors to watching TV when I was young.
A foreign company in Beijing has o____ me a job as a secretary.
Each of us should keep the habitof saving w_____.
答案
key
prefer
offered
water
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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