混合支持式义齿受力后,力由()
A.基牙承载
B.支托承载
C.基牙和基托下黏膜、牙槽骨承载
D.基托承载
E.基托下的黏膜、牙槽骨承载
参考答案:C
I can't tell the time because the ________of the clock have been removed.
A.hands
B.pointers
C.arms
D.fingers
小儿骨骼因病变影响到骨骼的生长,其所波及的部位是()
A.基质
B.骨化中心
C.板层结构
D.骨骺
E.副骨骺