A.10° B.15° C.20° D.25° E.30°
A.容易造成菌斑附著 B.邊緣不易密合 C.易產(chǎn)生繼發(fā)齲 D.在前牙區(qū)不美觀 E.易形成肩臺
A.0.5mm B.1.0mm C.1.8mm D.1.5mm E.2.0mm