眶下间隙的下界是()A.眶下缘 B.上颌骨牙槽突 C.鼻侧缘 D.颧肌 E.尖牙窝 发布时间:2017-06-20 13:55 │ 来源:www.tikuol.com 题型:单项选择题 问题: 眶下间隙的下界是()A.眶下缘B.上颌骨牙槽突C.鼻侧缘D.颧肌E.尖牙窝