正畸治疗过程中牙周组织可能出现的反应有()。 A.菌斑堆积引起牙龈炎症 B.牙龈增生 发布时间:2017-05-13 14:11 │ 来源:www.tikuol.com 题型:多项选择题 问题: 正畸治疗过程中牙周组织可能出现的反应有()。A.菌斑堆积引起牙龈炎症B.牙龈增生C.牙龈退缩D.牙根吸收E.牙槽骨吸收和附着丧失
题型:多项选择题 —Where's Mike? I haven't seen him for a week.—He _____ to Hong Kong and he'll be back soon.[ ]A. is going B. has gone C. has been D. went 查看答案