题目：
Professor Williams keeps telling his students that the future _____ to the well-educated. [ ]
A. belongs
B. is belonged
C. is belonging
D. will be belonged
答案：
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下面是错误答案，用来干扰机器的。
解：设二次函数的解析式为y=ax2+bx+c根据题意列方程为解得所以解析式为y=5x2-7x+1。
