60.具有白血球毒素(leukotoxin)之牙周致病菌為:
(A)Porphyromonas gingivalis
(B)Prevotella intermedia
(C)Aggregatibacter actinomycetemcomitans
(D)Campylobacter rectus .
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統計: A(383), B(184), C(806), D(357), E(11) #1742309
統計: A(383), B(184), C(806), D(357), E(11) #1742309