It's true that beauty does not always meet with a single, uniform standard. A person's cultural background, for example, may influence __________ he or she find attractive in others.

如下图所示，位于湿润区的某河流，穿过平行的背斜山脉，进入平原。读图，完成下列各题。

如图，抛物线 $y=a{x}^2-\frac{1}{3}x+2$ 与x轴交于点A和点B，与y轴交于点C，已知点B的坐标为（3，0）．