72.下列何種馬圓蟲會引起馬的腸系動脈血栓?
(A)Strongylus equinus
(B)Strongylus vulgaris
(C)Strongylus edentatus
(D)Strongylus westeri

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統計： A(115), B(259), C(2), D(2), E(0) #1147399