问题
单项选择题
铸造全冠的适应证不包括（）
A.后牙牙体严重缺损，固位形、抗力形较差者
B.后牙出现低牙
、邻接不良、牙冠短小、错位牙改形、牙冠折断等需要以修复体恢复正常解剖外形、咬合、邻接等
C.固定义齿的固位体、可摘局部义齿基牙缺损需要保护
D.龋患率高或牙本质过敏严重伴牙体缺损
E.前牙银汞合金充填后邻牙存在异种金属微电流刺激引起症状者
答案
参考答案：E
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铸造全冠的适应证不包括（）
A.后牙牙体严重缺损，固位形、抗力形较差者
B.后牙出现低牙、邻接不良、牙冠短小、错位牙改形、牙冠折断等需要以修复体恢复正常解剖外形、咬合、邻接等
C.固定义齿的固位体、可摘局部义齿基牙缺损需要保护
D.龋患率高或牙本质过敏严重伴牙体缺损
E.前牙银汞合金充填后邻牙存在异种金属微电流刺激引起症状者
参考答案：E
Sarah wrote a letter to Annie, saying that she felt __31__ by her friend, Hannah. They had an exam recently and Sarah got the __32___ grade in the class. When washing hands with Hannah, Sarah __33__ that she did badly in the exam and __34__ her not to tell anyone else. However, the next day, some other students got to know the news. Sarah thought it was Hannah who didn’t keep her __35__ because the only people who can see their grades are the teacher and the students that the grades __36__ to. But when Sarah talked about it with Hannah, she __37__ that she hadn’t told anyone else and said that someone must have been __38__ on what they said. But Sarah didn’t __39 __ her, and could not __40__ her for doing that and lying. Sarah lost her best friend.
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