题目

There are f (很少) eggs at home. Let's go and buy some in the shop. 答案：【1】few14．已知一次函数y=kx+b，k从2，-3中随机取一个值，b从1，-1，-2中随机取一个值，则该一次函数的图象经过二、三、四象限的概率为（　　）A．$\frac{1}{3}$B．$\frac{2}{3}$C．$\frac{1}{6}$D．$\frac{5}{6}$