足骨性关节炎最常累及的关节是（）
A.跖骨间关节
B.趾骨间关节
C.第一跖趾关节
D.跗跖关节
E.距舟关节
参考答案：C
— Are these _____ photos?
— No. They are _____. [ ]
A. your; my father's
B. yours; my fathers'
C. your; of my father
C. yours; of my father
YTB—□中的□表示（）
A.电动机功率
B.滚筒直径
C.滚筒宽度
