________furs in all his life, the old man's biggest wish was to buy a diamond necklace for his beloved wife.

甲、乙两个物体从同一地点同时出发，在同一直线上做匀变速直线运动，它们的速度图象如图所示，则（   ）

食用油能在水中溶解。（      ）

抛物线$y^2=12x$的准线与双曲线^{$\frac{x^2}{9}-\frac{y^2}{3}=1$}的两条渐近线所围成的三角形面积等于（   ）

填上合适的介词。

Look ____ the monkeys.