—Can I ask you some questions? — _________. [ ]
A. Not at all
B. Well
C. Yes, of course
答案:C
The engine of the bus was _________,and the bad weather added to the worries of the passengers. [ ]
A. in vain
B. in good condition
C. out of work
D. out of order
一周前,某患者以食物嵌塞痛为主诉,就诊,当时诊断为深龋,并行垫底,银汞合金充填,术后患者出现冷热刺激敏感,无自发痛及咬合痛,请问:
造成患者术后出现冷热刺激敏感症状的原因有以下可能,除了()。
A.备洞过程的机械刺激
B.垫底不完善
C.术前误诊
D.对颌牙有异种金属修复体
E.患者有遗漏的龋洞