选字填空。
山(破 坡) ____ (乱 扎)____石 老(鹰 英)____
—In the morning.
Let me the door for you.
zhè jiāng
pén zāi
yóu tóng
é jiǎo
____
(Ⅰ)解不等式f(x)≤2;
(Ⅱ)若对任意实数x∈5,9,f(x)≤ax﹣1恒成立,求实数a的取值范围.