SAT 数学题求解答

题目

SAT 数学题求解答
On a number line, three points have coordianates r, s, and t, where r＜s＜t, which of the following cannot be true?
A)tr+s C) t=r+s D) s=(r+t)/2 E)t=(r+s )/2

答案

就是一条line上面三个点,从左到右依次是r,s,t,因为上面说了大小比较嘛.还有SAT数学题都很简单~主要要细心!譬如这道题问的是CANNOT be true!选E啊~a,b,c三个选项都有可能~,举个例子,t可以取2,3,5,r取0.5,1,s取1.5,只...