• 2022-06-12
    牙釉质的矿物盐是以结晶形式存在()
    A: Ca10(PO45(OH)2
    B: Ca10(PO16(OH)2
    C: Ca8(PO46(OH)2
    D: Ca8(PO45(OH)2
    E: Ca10(PO43(OH)2