题干
the police haven't dismissed the idea, they are looking into other possibilities as well.
A：Before
B：If
C：As
D：While
答案(点此获取答案解析）
D
,若
在区间
上是减函数,且对任意的
,总有
,则实数
的取值范围是( )
uy me a skirt like this? 
______ one than this, but ________ this.
