用于智齿冠周炎冲洗的过氧化氢溶液浓度是A. 1%?3% B. 0.1%?0.3% C. 0.3%?0.5% D. 0.25%?0.5% E. 5%?10%

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问题 用于智齿冠周炎冲洗的过氧化氢溶液浓度是

选项 A. 1%?3%
B. 0.1%?0.3%
C. 0.3%?0.5%
D. 0.25%?0.5%
E. 5%?10%

答案A

解析
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