单词拼写(共5小题;每小题1分,满分5分)

小题1:He likes playing football,and his sister likes playing the p     (钢琴).

小题2:Jessica won’t watch TV until she f     (完成)her homework.

小题3:You can borrow some books from the library,but you must r     (归还)them on time.

小题4:Daddy’s suggestion was really h     (有帮助的)for me to make a right decision.

小题5:I like a lot of vegetables,such as cabbages,carrots and t     (西红柿).

如左上8765和右上5678缺失，余留牙正常口底至舌侧龈缘的距离为10mm。设计铸造支架义齿，左下4和右下4采用RPI卡环组

如果用RPA卡环组代替RPI卡环组基牙颊侧因环形卡环臂的坚硬部分应位于（）

A.颊侧近中，观测线上方的非倒凹区

B.颊侧近中，观测线下方的倒凹区

C.颊侧远中，观测线上方的非倒凹区

D.颊侧远中，观测线上缘

E.颊侧远中，观测线上方的非倒凹区