1、on july 16用什么提问
题目
1、on july 16用什么提问
2、a friend of mine 用什么提问
3、that‘s very kind of you to help me( 保持原意)
you are ( )( )help me
4、to arrive on time is very important in china(保持
( )( )to arrive on time in china
答案
when
who
You are kindful to help me.
It's important to arrive on time in china
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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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