5-6ii=(5-6i)ii2
=5i-6i2-1
=-6-5i.
故选D.
患儿男,10岁,替,磨牙远中关系,上颌发育正常,前牙Ⅲ度深覆,下颌后缩,下切牙略舌倾,面下1/3短
若不良习惯已经去除,现阶段矫正器最好选用()
A.方丝弓矫治器
B.直丝弓矫治器
C.上颌平面导板
D.上颌斜面导板
E.上颌牙合垫矫正器
If we can’t find all our souvenirs here, we can go to ________ shopping mall.
A.another
B.the other
C.other
D.others