( ) of the students in our class ( ) from the country A three fifth,is B three fifths,are
题目
( ) of the students in our class ( ) from the country A three fifth,is B three fifths,are
C third fives,are Dthree five,is what did Mr Green say just now?--He asked us ( )A what will the weather be like B what the weather would like C what would the weather be like D what the weather would be like
答案
第一题选B
第二题选D
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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