He was [ten years old] last year.括号部分提问.Lily was a little pretty girl two year.肯否回答.急
题目
He was [ten years old] last year.括号部分提问.Lily was a little pretty girl two year.肯否回答.急
第二句改否定句
答案
How old was he last year?
Was Lily a little pretty girl two years ago?
Yes,she was.
No,she wasn't.
Lily wasn't a little pretty girl two years ago.
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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.
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