问题
单项选择题 A1/A2型题
杆卡式覆盖义齿底部应与黏膜间保持多少以上的间隙,以获得良好的自洁作用()
A.2mm
B.3mm
C.1.5mm
D.2.5mm
E.杆与黏膜紧密接触
答案
参考答案:A
杆卡式覆盖义齿底部应与黏膜间保持多少以上的间隙,以获得良好的自洁作用()
A.2mm
B.3mm
C.1.5mm
D.2.5mm
E.杆与黏膜紧密接触
参考答案:A
完成对话 。 | |
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( )1.How often do you go to see your grandparents? ( )2.What's the matter with your brother? ( )3.How do you go to school? ( )4.My grandpa is ill. ( )5.Tom is ill. What should I do? |