【名词&注释】
职能部门(functional department)、纪检监察(discipline inspection and supervision)、全口义齿(complete denture)、可摘局部义齿(removable partial denture)、领导班子(leading group)、下颌运动(mandibular movement)、感受器(receptor)、感觉神经(sensory nerve)、人工牙(artificial tooth)、银汞合金充填体(silver amalgam restorations)
[单选题]可摘局部义齿前牙排列时,下列哪项不是对称美的要求
A. 人工牙(artificial tooth)的唇面形态
B. 人工牙(artificial tooth)的轴向倾斜
C. 人工牙(artificial tooth)的唇舌径厚度
D. 人工牙(artificial tooth)的切缘长短
E. 人工牙(artificial tooth)的颈缘高低