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PRESENT-DAY ECOLOGIC THREAT TO SURVIVAL
[摘要] The text discusses the forms of assessing the dangers of present- day ecologic threats to survival caused by certain ecologic problems. The assessment of the threats is shown by the results of the research made in June 1992 on a sample...
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[效力级别]  [学科分类] 环境科学(综合)
[关键词] assessment;dangers;ecologic problems;ecologic threats;perceptions;pollution;survival [时效性] 
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