23.下列何種疾病之病原菌經染色後呈現兩端濃染現象?
(A)fowl cholera
(B)psittacosis
(C)pullorum disease
(D)fowl typhoid
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統計: A(1349), B(214), C(221), D(195), E(0) #832219
統計: A(1349), B(214), C(221), D(195), E(0) #832219