14. 口香糖中含有何種成分,具有預防齵齒之功能?
(A)glucose
(B)sucrose
(C)xylitol
(D)mannose
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統計: A(12), B(9), C(538), D(10), E(0) #1780469
統計: A(12), B(9), C(538), D(10), E(0) #1780469