58.在健康的牙齦溝內最常見到下列何種細菌?
(A)P. gingivalis及T. forsythsia
(B)T. denticola及F. nucleatum
(C)P. intermedia及Capnocytophaga spp.
(D)Streptococcus spp.及Actinomyces spp.

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統計: A(22), B(20), C(16), D(205), E(0) #1035069

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#2327591
Primary colonizers
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