缺失,正畸后缺牙间隙小,稳固,可选择()。
A.复合固定桥
B.单端固定桥
C.双端固定桥
D.平固定桥
E.粘接固定桥
参考答案:B
确诊前置胎盘,下列哪项首选
A.B超检查B.产后检查胎膜破口距胎盘边缘7cm以内C. * * 检查D.症状E.体征
Giving small children some money as a gift during the Spring Festival is a common ______ in China, which may seem strange to foreigners?
A.sense
B.practice
C.ground
D.habit