this is the first time that Ihave been here 是定语从句吗?请分析句子结构
题目
this is the first time that Ihave been here 是定语从句吗?请分析句子结构
答案
不是定语从句,这是一个句型:It's the (first,second,third...)time something has happened.
Tim is having a driving lesson.It's his first one.= It's the first time he has driven a car.= He has never driven a car before.
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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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