题型:名词解释 患者女性,74岁,上下颌牙列缺失,要求重新行全口义齿修复,查见上颌弓小,下颌弓大,上颌唇颊侧骨组织吸收明显,下颌牙槽嵴较丰满,原全口义齿按正常排牙,上颌固位差,若重做全口义齿应该了解下列哪一项不是颌位关系异常的临床表现()A.上颌前突B.上下牙槽嵴低平C.下颌前突D.颌间距离小E.下牙弓宽于上牙弓 查看答案
题型:名词解释 My brother's never been late for work, _____? [ ]A. is he B. isn't he C. has he D. hasn't he 查看答案