73. 抽菸是下列何者的原發危險因子(primary risk factor)？ ①慢性阻性肺病(Chronic obstructive lung disease)②糖尿病(DM)③心臟病(heart disease)④頭頸癌(Head & neck cancer)⑤牙周病(periodontal disease)
(A)①②③④
(B)②③④⑤
(C)①③④⑤
(D)①②④⑤

題目解析此題的目的是要考查抽菸作為主...