A:practices
B:practiced
C:practicing
D:to practice
-Didn't you see the sign "No parking!" on the right?
-Sorry, I didn't. But now I know parking ____________ here.
(Ⅰ)当 a=4 时,求不等式 f(x)>2 的解集;
(Ⅱ)若 f(x)≥|x−4| 的解集包含 2,3 ,求实数 a 的取值范围.