若PX leq x_2 = 0.6，PX > x_1 = 0.6，且x_1 A. 0.2B. 0.6C. 0.5D. 0.3

若$P\{X \leq x_2\} = 0.6$，$P\{X > x_1\} = 0.6$，且$x_1 < x_2$，则$P\{x_1 < X \leq x_2\} = (\ )$.

A. 0.2

B. 0.6

C. 0.5

D. 0.3