题目内容:
Whatdoestheauthorfeelpuzzledabout?
A.Whythepricesofchildcarevarygreatlyfromstatetostate. B.Whyincreasedchildcarepriceshavenotledtobetterservice.
C.Whychildcareworkers'payhasnotincreasedwiththerisingchildcarecosts.
D.Whythereisasevereshortageofchildcareprofessionalsinanumberofstates.
参考答案:
答案解析: