Conclusion There are many factors that affect respiratory tract infection in children, the difference in the kinds of isolated bacteria among different areas were significant.
结论影响儿童呼吸道细菌感染的因素很多，各地分离细菌种类差异较大。
There was not significant difference on adaptive behavior of school-age children among various cultural level families.
不同家庭文化水平的儿童适应技能没有显著差异。
There was a significant difference among the three mothers regarding their purchases of learning materials for their children;
三类母亲给孩子购买学习资料方面差异显著。
There was a significant difference among the three mothers regarding their purchases of learning materials for their children;
三类母亲给孩子购买学习资料方面差异显著。
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