0<=x<=2,
-2<=x-2<=0.
f(x)在[-2,0]上单调递减. f(-1)>=f(0), 所以,B不对.
f(x)在[0,2]上单调递增. f(0)<=f(1)<=f(2). f(0)<=f(1)=f(-1)<=f(2). A对.