under belind in on 造句,可以用上table,bed,dresser,bookcase,sofa,chair,drawer,plant,bag,math,video.
题目
under belind in on 造句,可以用上table,bed,dresser,bookcase,sofa,chair,drawer,plant,bag,math,video.
答案
the ball under the desk.
this boy behind me
there is a book in my school bag.
there is a book on the table.
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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