63.下列那一種物質可改變Streptococcus mutans的耐酸性?
(A)OH-
(B)F-
(C)O-
(D)Cl-
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統計: A(408), B(1400), C(89), D(140), E(0) #1947066
統計: A(408), B(1400), C(89), D(140), E(0) #1947066