初戴全口义齿时要检查()
A.义齿的平稳度
B.基托情况
C.颌位关系
D.咬合关系
E.有无疼痛
参考答案:A, B, C, D, E
— Why didn’t you go fishing with your friends yesterday?
— Well, fishing is an activity which a great deal of patience, which I don’t have.
A.calls in
B.calls for
C.calls on
D.calls up
碳洗塔上部除沫器的作用是:(),避免将水带入变换,损坏触媒