He ate two eggs and some bread for breakfast this morning.对划线部分提问,划线部分是this morning
题目
He ate two eggs and some bread for breakfast this morning.对划线部分提问,划线部分是this morning
答案
when did he eat two eggs and some bread for breakfast?
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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