1.It is usually a It is usually a buidding.People collet things there,and show the things to peopl
题目
1.It is usually a It is usually a buidding.People collet things there,and show the things to peopl
e.It is a ( ).2.A( )is usually a piece of land.People use it for growing flowers,trees,shrubs,and other plants.
building，打错了。
答案
museum garden
博物馆 花园
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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