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联想的方式有:①串联式:如《猎户》“尚二叔→百中老人→董昆”;②辐射式:如《土地》以“土地”为中心开去,写“热爱生活,保卫土地,建设土地”;③假托式:如《白杨礼赞》;由于工事内外空气得到交换,工事内的空气条件能够改善,因此,过滤式防护能提供较长的防护时间。④屏风式:如《风景谈》。注意丰富的联想,由此及彼,由浅入深,由实到虚,这样才能体会到文章的神韵,领会到更深刻的道理。4.品味散文的语言
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常用的灭火技术有哪几种?
答:常用的灭火技术有三种:1、隔绝空气法:使燃烧物隔绝空气,因缺氧而熄灭;2、冷却降温法:用水、干冰等直接喷撒在燃烧物上,水、干冰气化吸收热量降温,且形成水气、二氧化碳隔绝空气;由于缺少统一规划,缺乏经验,加上技术力量不足,这些工程一般幅员较小,质量较差,现统称为早期工程。3、可燃物隔离法:把燃烧火源与周围可燃物分离开来,使燃烧缺少可燃物而熄灭。
如果在野外被困,可采用哪些方法向外呼救?
答:可采用下列方法向外呼救:点燃火堆,光照求救,色彩求救,利用反光镜,摆放物品,声音求救。
《人民防空法》中关于公民在人民防空中的权利和义务
权利:获得人防信息咨询、疏散指导、工程掩蔽或紧急救援帮助的权利,接受人防教育的权利,个人***人防建设享受***或城市规定的优惠政策的权利等。
义务:按规定建设防空地下室,根据需要参加人防***队,遵守人民防空管制规定,不占用人防通信频率,不损坏人防设施或在工程出口堆放杂物、不在工程内部乱倒废物、影响工程使用等。
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保持清醒的头脑,真正做到居安思危,常备不懈,还必须洞察世界各国民防的发展趋势,进一步增强我国人民防空建设的紧迫感。当前,世界各国特别是一些发达***认真汲取第二次的经验教训,并考虑到现代高技术空xi兵qi的发展情况,对民防建设特别是地下防空工程建设十分重视,迸一步加快了高技术条件下民防建设的步伐。俄罗斯认为民防已成为“保卫***安危的重要的战略措施”,并将民防纳入新的军事学说领域,作为***战略的一个重要组成部分。美国认为民防是其“整个威慑力量态势中的一个必不可少的部分”。安装位置:一般安装于洗消间内密闭隔墙处,也可装在两内墙转角处。
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