论述财务行政的基本职能。
与继发龋的发生无关的是 ["A．腐质未去净","B．洞型制备不规范","C．没有用窝洞消毒剂","D．操作不当","E．材料调制不当"]
早期龋损的改变，下述哪项是错误的 ["A．硬组织发生脱矿","B．硬组织结构发生改变","C．牙齿透明度下降","D．呈白垩色","E．出现龋洞"]
菌斑的获得性膜结构的功能不包括 ["A．修复或保护釉质表面","B．影响微生物对牙面的附着","C．为菌斑微生物提供营养","D．为釉质提供有选择的渗透性","E．利于抗生素发挥作用"]
龋病时，牙体硬组织病理改变涉及 ["A．牙釉质","B．牙本质","C．牙骨质","D．牙釉质和牙本质","E．牙釉质、牙本质、牙骨质"]
行政沟通具有哪些不同于社会沟通的个性？
