已知等腰△ABC的周长为10,若设腰长为x,则x的取值范围是______.
依题意得:10-2x-x<x<10-2x+x,
解得52<x<5.
故填52<x<5.
— Why isn't Cathy here yet?
— She ______ to be picked up at the station.
A.could wait
B.must wait
C.might be waiting
D.can be waiting
为什么要解决工作作风中的突出问题?