1.be going to... 2.beuseful for... 3.be interested in...4.be used to+动词原型 怎么造句
题目
1.be going to... 2.beuseful for... 3.be interested in...4.be used to+动词原型 怎么造句
答案
i am going to buy a book
The book is useful for you.
I am interested in English
Water can be used to wash the room.
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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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