#雪崩预防# 相关文档
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2014年最新职称英语_完形填空_小抄版本_最全_已按字典排版.doc
◎Avalanche and Its SafetyAn avalanche is a sudden and rapid flow of snow often mixed with air and water down a mountainside. Avalanches are among the biggest dangers in the mountains for both life
日期：2022-05-07 格式：.docx 页数：3页 大小：72KB 发布：
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