∴当﹣2≤x1<x2≤2时,总有f(x1)<f(x2)成立;反之也成立,
即若f(x1)<f(x2),则:﹣2≤x1<x2≤2.
∵f(1﹣m)<f(m),
∴
①s b y t r r e a r w ____
② w m n o a e e l r t ____
③ g a p e r ____
④ e t m u i n ____
⑤ o t h e s ____