题型:问答题 简答题 He hesitated_________ . Which is wrong? [ ]A. about whether to go or notB. about going to the town C. going to the town D. to accept the advice 查看答案
题型:问答题 简答题 后退接触发生在()A.上颌第一磨牙的远中颊尖近中斜面与下颌第二磨牙的远中颊尖远中斜面B.上颌第一磨牙的远中颊尖远中斜面与下颌第二磨牙的远中颊尖近中斜面C.上颌第二磨牙的远中颊尖近中斜面与下颌第二磨牙的远中颊尖远中斜面D.上颌第二磨牙的远中颊尖远中斜面与下颌第二磨牙的远中颊尖近中斜面E.上颌磨牙的远中颊尖近中斜面与下颌磨牙的远中颊尖远中斜面 查看答案