【问题】 饮水加氟适用于龋病高发区和
A:水氟0.3ppm,氟牙症指数0.2
B:水氟0.4ppm,氟牙症指数0.3
C:水氟0.2ppm,氟牙症指数0.1
D:水氟0.4ppm,氟牙症指数0.2
E:水氟0.3ppm,氟牙症指数0.3
B:水氟0.4ppm,氟牙症指数0.3
C:水氟0.2ppm,氟牙症指数0.1
D:水氟0.4ppm,氟牙症指数0.2
E:水氟0.3ppm,氟牙症指数0.3
正确答案:D
题目解析:暂无解析。