A:f(0)<f(0.6)<f(-0.5)
B:f(0)<f(-0.5)<f(0.6)
C:f(0.6)<f(-0.5)<f(0)
D:f(-0.5)<f(0)<f(0.6)
如图,在Rt△ABC中,∠ACB=90°,CD⊥AB,AC=6,AD=3.6,则BC=( )