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问题
单项选择题 A1型题
急性牙髓炎的疼痛特点为，除外（）
A.自发性、阵发性疼痛
B.夜间痛
C.温度刺激疼痛加剧
D.疼痛不能定位
E.咬合痛
答案
参考答案：
E
补全对话，情景问答
根据所给问句选正确答语。
( ) 1. What is Danny doing?
( ) 2. What season is this?
( ) 3. What is Jenny doing?
( ) 4. What are you learning?
A. It's summer.
B. She's taking off her dress.
C. He's skiing on the snow.
D. I am learning English.
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填空题
射线照相灵敏度是射线照相（）和（）两大因素的综合结果。
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