第1题: [多项选择]对于固定义齿桥体龈面的要求叙述正确的是( ) A. 桥体龈面的形式应有利于保持固定义齿的清洁卫生 B. 桥体龈面与牙槽嵴粘膜接触的紧密度应适当 C. 桥体龈面与牙槽嵴粘膜接触面应尽量加大 D. 桥体龈面应高度光滑 E. 桥体龈面应选用化学性能稳定,生物相容性好,表面能高度抛光、无气孔的材料制作 参考答案:A, B, D, E
第22题: [单项选择]What’s the possible relationship between the two speakers A. Husband and wife. B. Doctor and patient. C. Teacher and student. D. Father and daughter. 参考答案:B 答案解析:[听力原文] W: Have you found anything wrong with my stomach M: Not now. I’m stir examining. I’ll