What a nice bag Where did you buy ______,Sally?I want to buy ______,too.
题目
What a nice bag Where did you buy ______,Sally?I want to buy ______,too.
A one it
B one one
C it one
D it it
答案
C 多么好的包!你在哪里买的它?我也想要买一个.
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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