题型:判断题 女性患者,32岁,单端固定桥,戴2年余,近期自觉基牙松动,冷热疼痛不适,查:松动Ⅰ度,固位体面穿孔,深龋洞,边缘不密合,牙龈充血,红肿基牙松动的原因可能是()A.固位体与基牙不密合B.设计不当,基牙受力过大C.固位体材料强度差D.基牙牙根过短E.基牙牙周炎 查看答案
题型:判断题 They are _____ in a factory. [ ]A. factory workers B. a factory worker C. factories workers D. factories worker 查看答案