前牙选择时,下列哪一项是错误的() A.上中切牙的2/3与上唇线等高 B.颜色最好要 发布时间:2017-09-02 18:21 │ 来源:www.tikuol.com 题型:单项选择题 问题: 前牙选择时,下列哪一项是错误的()A.上中切牙的2/3与上唇线等高B.颜色最好要白些C.形态与面型一致D.颜色与肤色一致E.形态与颌弓一致
题型:单项选择题 Which of the following indicates the acceptable range of variation of a process as represented on the control chart A) Mean. B) Specification limit. C) Rule of seven. D) Upper and lower control limits. 查看答案
题型:单项选择题 There are many trees on _______ sides of the road. [ ]A. every B. all C. both D. either 查看答案