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【单选题】
有效预防小儿口炎的措施是A.
经常保持口腔清洁
B.
常用抗生素预防感染
C.
3%过氧化氢溶液清洗口腔
D.
2%碳酸氢钠溶液清洗口腔
E.
0.1%依沙吖啶()溶液清洗口腔
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A.
some day
B.
one day
C.
in a day
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【简答题】A) margin B) leisure C) justification D) mayor 1. She added her comments in the ________. 2. The _______ was criticized by radical reformers for his indecisiveness. 3. These ...
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