中晚期食管癌的典型症状是()
A.持续性胸痛或背痛
B.进食时呛咳
C.进行性吞咽困难
D.食物停滞感或异物感
E.胸骨后疼痛或闷胀不适
参考答案:C
— Excuse me. Could you tell me ______?
— Yes, and New York is the most beautiful place that I have ever lived.
A.when your birthday is
B.what color your bike is
C.if I can join the music club
D.where you were born
固定桥粘接以后出现龈炎,其原因不可能是()
A.牙龈组织受到压迫
B.粘固剂未完全去尽
C.固位体边缘不贴合,导致牙龈菌斑附着
D.烤瓷牙与邻牙触点不正确
E.牙周膜轻度创伤