题目内容

Which of the following statements concerning fluoride from fluoride-releasing materials is

A. may be elevated in saliva
B. may enhance remineralization
C. may reduce bacteria growth and acid production
D. all of the above

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The strength of zinc phosphate cement is linearly related to its()

A. pH
B. powder-to-liquid ratio
C. fluoride content
D. glass content

残留单体

国家、社会、学校和家庭应当教育和帮助未成年人运用法律手段维护自己的合法权益。()
A对
B错

未成年人的父母或者其他监护人对未成年人的法治教育不负有直接责任。()
A对
B错