That is his parents That is his sister This is my brother These are my friend 以上改一般疑问句
题目
That is his parents That is his sister This is my brother These are my friend 以上改一般疑问句
答案
Is that his parents?Is that his sister Is this your brother?Are these your friend?我是一名英语老师,
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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