A questionnaire survey was conducted in 620 middle school students to explore the effects of present mass media communication on smoking knowledge, attitude and behavior.
为研究目前大众传媒对青少年吸烟知识、态度、行为的影响，文中对620名中学生进行了吸烟问卷调查。
The Knowledge, attitude and behavior on pufferfis h in denizens was investigated .
调查居民对河豚的知识、态度和行为状况；
The relation between respondent's wetland conservation knowledge, attitude, and behavior had a positive correlation.
受访者的湿地保育知识与湿地保育态度、湿地保育行为彼此间有正相关。
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