通用保健牙刷,尼龙刷毛直径应为A.0.20mmB.0.25mmC.0.30mmD.0.35mmE.0.40mm
通用保健牙刷,尼龙刷毛直径应为
A.0.20mm
B.0.25mm
C.0.30mm
D.0.35mm
E.0.40mm
相关考题:
单选题口腔保健中牙刷刷毛的直径应()A0.5mmB0.4mmC0.3mmD0.2mmE0.1mm
通用保健牙刷,尼龙刷毛直径应为
A.0.20mm
B.0.25mm
C.0.30mm
D.0.35mm
E.0.40mm