题型:判断题 第一前磨牙缺失时,人工牙牙冠长度应()A.与侧切牙切缘平齐B.低于尖牙牙冠长度1mmC.高于尖牙牙冠长度1mmD.低于尖牙牙冠长度1.5mmE.与尖牙牙冠长度协调一致,以利于美观 查看答案
题型:判断题 He has two friends. One is English, ______ is Chinese. [ ]A. the others B. other C. the other D. others 查看答案