this these that those
题目
this these that those
【1】 【 】is my classroom.【 】is the bulletin board,and【 】are the computers 【2】Are 【 】your books,and is 【 】your pencil
答案
【1】 【 This】is my classroom.
【That 】is the bulletin board,and【 those】are the computers 【2】Are 【those 】your books,and is 【 that】your pencil
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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