一道英语单选题 帮忙选答案解释原因
题目
一道英语单选题 帮忙选答案解释原因
You alaways talk about your pet dog,What's it like?
A.It likes meat.
B.Three years old.
C.It is small and white.
D.It likes playing with me.
答案
what is something like?这一句型意思是 什么东西长什么样子?所以答案应选C.
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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