my friend is a boy(用a girl进行提问,并用a girl回答)
题目
my friend is a boy(用a girl进行提问,并用a girl回答)
.
sometimes writes to his friends ( 用 the boy 来改写)
答案
Is your friend a boy or a girl?
She is a girl.
如果用the boy作主语的话,直接加在前面就可以了
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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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