Of the two boys,the child chose_______.A.the expensive one B.one most expensive C.much more longer
题目
Of the two boys,the child chose_______.A.the expensive one B.one most expensive C.much more longer
答案
题干,答案都有问题
应该是:
Of the two 【toys】,the child chose 【.the more expensive one 】
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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