This paper talks about how the audience in the countryside receives the information from the media, with a discussion of the mass media effects.

本研究通过实证调查，分析农村受众的媒介接触行为，以及大众传播媒介在农村的传播效应。

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The experimental results show that the mass concentration of cytokinin and the composition of the basic media have significant effects on the vitrification of plantlets of Aloe vera L. in vitro.

实验结果表明：细胞分裂素的质量浓度和基本培养基成分对离体培养中的美国芦荟组培苗的玻璃化现象有显著影响。

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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。

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