Jack and Bill are twins,but the former is taller than___ A.later B.late C.latest D.the latter
题目
Jack and Bill are twins,but the former is taller than___ A.later B.late C.latest D.the latter
答案
D选项,前面加The来区别前者和后者,也就是Jack是前者,Bill是后者.
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．
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