68.依據衛生假說(hygiene hypothesis)因童年時缺少接觸感染,而影響免疫系統正常發展,最可以解釋下列何者發生率增加?
(A)chronic bronchitis
(B)emphysema
(C)asthma
(D)bronchiolitis
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統計: A(152), B(161), C(388), D(83), E(0) #3379609
統計: A(152), B(161), C(388), D(83), E(0) #3379609