查看原题
若集合 $A=\left\{\frac{1}{4}, \frac{1}{2}, \frac{3}{4}, 1\right\}, B=\{x \mid 3 x-2>0\}$ ，则 $A \cap B=$
A. $\{1\}$     B. $\left\{\frac{1}{4}, \frac{1}{2}\right\}$     C. $\left\{\frac{3}{4}, 1\right\}$     D. $\left\{\frac{1}{2}, \frac{3}{4}, 1\right\}$         
不再提醒