1.there ____________(is,are) two windows in the dining room.
题目
1.there ____________(is,are) two windows in the dining room.
2.____________(is,are) there any tissue in the bathroom?
3.here _____________(is,are) your books.
4.come and sit _____________(in,with) me.
5.____________(they're,there're) on the stool.
答案
1.are
2.Is
3.are
2.with
5.They're
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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