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用0.2%NaF溶液含漱防龋,应用的频率应该是

单选题
2021-09-01 19:31
A、每天一次
B、隔天一次
C、每隔三天一次
D、每周一次
E、每月一次
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正确答案
D

试题解析

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用0.2%NaF溶液含漱防龋,应用的频率应该是
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