全口义齿左右翘动时,哪些解剖标志所对应的基托组织面可作缓冲()
A.上颌硬区
B.下颌舌骨嵴
C.下颌舌隆突
D.腭小凹
E.上颌结节
参考答案:A, B, C
I prefer_______ rather than________.
A.to be a teacher; be a nurse
B.to be a teacher ;to be a nurse
C.being a teacher; being a nurse
D.be a teacher; be a nurse
发生火灾时,如果身上着火,应该努力奔跑逃生。