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6. Click "OK" in turn to exit the window.Covering theory: Covering protection effect. Flame retardants such as boric acid melt at high temperature to form a glassy protective film. On the one hand, it blocks the entry of external oxygen; On the other hand, it diffuses tissue combustible gas to the outside to achieve the covering protection effect on fibers.女主以前一直被人看不起，也因此受到伤害。如今出人头地的女主，她的幸福就是要看到过去那些看不起她的人都痛苦。陈步森幼年经历坎坷，父母离婚后走入社会，渐渐误入歧途被牵扯进一个杀人案中，他与同伙大马镫等人在抢劫杀害李寂后踏上逃亡之路……1941年我军截获日军准备进攻太行山土匪山寨青龙寨的情报，指派兵工厂厂长赵刚查明情况。赵刚尾随日军密探来到了青龙寨，却被当作奸细被抓。寨主之女赵红花不愿嫁给山寨的接班人江大龙与赵刚合作出逃，日本人趁机占领青龙寨。红花将拯救山寨的希望放在国军营长唐淮川身上，却迟迟等不来支援只得率部攻山救父。赵孔武为掩护女儿红花牺牲，赵刚救出了红花，红花加入了八路军。独立团成立，赵刚任政委还带来了未婚妻杨柳青，红花被迫收起对赵刚的好感。一次战役中，杨柳青因破译日军电文失误导致独立团遭重创，杨柳青失踪。红花帮助悲痛的赵刚走出低谷，两人的感情升温时，杨柳青却回到了独立团。日军利用杨柳青的求胜心切设计陷害，赵刚营救杨柳青遇险，杨柳青为保护赵刚牺牲，临终前真心祝福红花和赵刚。红花和赵刚带领独立团终于击败日军夺回了青龙寨。The earliest measurement division of 12 units and 60 units came from Sumerians in Mesopotamia between the Euphrates and Tigris rivers between 4000 BC and 2000 BC, who created the first high civilization of mankind. The invention of wheels and cuneiform characters divided the whole into 12 units (12 months a year, the concept of "one dozen") and 60 units of measurement system (minute hand)In the past 50 years or so, he has received countless honors for protecting the border, just like the boundary markers coded by grandmothers.