问题
选择题
It's five o'clock. My children ______. [ ]
A. sleep
B. sleeps
C. are sleeping
D. is sleeping
答案
答案:C
It's five o'clock. My children ______. [ ]
A. sleep
B. sleeps
C. are sleeping
D. is sleeping
答案:C
每个案例至少有5个提问,每个提问有6~12个备选答案,其中正确答案有1个或者多个。
患者刘某,女,25岁,A1近中切角缺损,行烤瓷熔附金属全冠修复。 |
烤瓷熔附金属全冠金属基底部分的厚度为
A.0.1~0.3mm
B.0.3~0.5mm
C.0.5~0.8mm
D.0.8~1.0mm
E.1.0~1.2mm1.2~1.5mm