Twenty-five years later,another professor
题目
Twenty-five years later,another professor
Twenty-five years later,,another professor read about the earlier study.He told his students to ()what had happened to the boys.
A.look for B.find out C.see
答案
B
find out 找出,查出
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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