Enamel can act in a sense like a_______________?
(A) Permeable membrane
(B) Impermeable membrane
(C) Semipermeable membrane
(D) Infrapermeable membrane
Enamel can act in a sense like a_______________?
(A) Permeable membrane
(B) Impermeable membrane
(C) Semipermeable membrane
(D) Infrapermeable membrane
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