应对防腐保温管的防腐层拉伸强度、断裂伸长率和（）三项指标进行抽查
参考答案：维卡软化点
男，62岁，、缺失，可摘局部义齿初戴后1个月，咀嚼时常咬颊粘膜，下颌舌侧第一磨牙至磨牙后垫区压痛，来院复诊。
压痛区检查时应注意（）
A．舌隆突区
B．上颌结节区
C．内斜嵴
D．舌侧系带区
E．磨牙后垫区
All teachers received warmest congratulations on Teachers’ Day. They felt ________.
A．an honour that they were teachers
B．that they were teachers an honour
C．it an honour when they were teachers
D．it an honour that they were teachers
、
缺失，可摘局部义齿初戴后1个月，咀嚼时常咬颊粘膜，下颌舌侧第一磨牙至磨牙后垫区压痛，来院复诊。