第一前磨牙缺失时,人工牙牙冠长度应与________牙冠长度协调一致,以利于美观。
参考答案:尖牙
The belief is the legendary lost continent of Atlantis may someday be found.
A.It is believed that
B.It is believing that
C.The belief that
D.That belief is
《红楼梦》前八十回中,有两处描写暗示了黛玉夭亡、宝玉出家的悲剧结局,一处是在第(),另一处是在第()回。