—Does the child need any help?

—No. She is           to dress herself. [ ]

A. enough old      

B. young enough  

C. old enough

股骨头韧带位于（）的关节囊内，连结股骨头凹和髋臼横韧带之间，内含营养股骨头的血管。防止髋关节过度后伸的结构是（）韧带。