一个同学从平面镜中看到电子显示屏显示着501-30的字样,实际上屏幕上是显示( )
答案:B
The speaker _____ pronunciation is the best will get the first place.
A.whose
B.which
C.what
D.that
某患者,缺失,在固定桥前后基牙预备中与目的无关的是()
A.消除倒凹
B.开辟间隙
C.留出固位体厚度所需的足够间隙
D.统一各基牙的轴向
E.具有较好的牙冠形态