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[主观题]
氟化钠溶液每周含漱一次的氟浓度应为A.0.2%.B.0.5%.C.0.1%.D.0.02%.E.0.05%.
氟化钠溶液每周含漱一次的氟浓度应为
A.0.2%.
B.0.5%.
C.0.1%.
D.0.02%.
E.0.05%.
![](https://lstatic.shangxueba.com/sxbzda/h5/images/tips_org.png)
氟化钠溶液每周含漱一次的氟浓度应为
A.0.2%.
B.0.5%.
C.0.1%.
D.0.02%.
E.0.05%.
第1题
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