31.引起chronic superficial gastritis(type B gastritis)的主要病原菌為:
(A)Helicobacter pylori
(B)Campylobacter lari
(C)Arcobacter butzleri
(D)Aeromonas trota
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統計: A(2155), B(197), C(125), D(82), E(0) #1741372
統計: A(2155), B(197), C(125), D(82), E(0) #1741372