67.「推廣民眾使用含氟牙膏以預防齲齒」是屬於下列何種疾病預防策略？
(A)High-risk individual approach
(B)High-risk population approach
(C)Targeted population approach
(D)Whole population approach

「推廣民眾使用含氟牙膏」屬於針對全體民眾...