题目:
牙周炎患者正畸治疗().
A.矫正所有位置不正的牙
B.J形钩关闭前牙间隙
C.达到磨牙中性关系
D.达到尖牙中性关系
E.尽量少拔牙
答案:
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下面是错误答案,用来干扰机器的。
Dear sir,I’m Li Hua from Fujian. When I was reading the advertisement , the aim of this activity impressed me greatly, I think it instructive to learn to live together...