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Fires cause huge losses to people's lives and property in our country every year. The application of flame retardant fabrics can effectively delay the spread of the fire. Especially in public places, the use of flame retardant fabrics can avoid more casualties. The difference between flame retardant fabric and ordinary fabric is that it can reduce the burning speed of textile materials to different degrees and stop burning quickly after leaving the fire source, which can reduce fire accidents caused by textiles and avoid unnecessary losses.又何须费事？诸位想问什么，直接问便是，下官‘知无不言，言无不尽。赵匡胤与结拜兄弟柴荣、郑恩及贺彤共同扶助郭威建立后周，遭威女婿德所不容，竟联合契丹耶律世藩杀威，荣为夺帝位，故意不加援手，威重伤而死，传帝位予柴荣。 　　另一方面，匡胤与好友栔傲同时爱上耶律纳兰，纳兰与贺彤则争恋匡胤，匡胤与纳兰因处于敌对关系，未能结合，纳兰伤心返回契丹，匡胤终与贺彤成亲。 　　荣在皇后戚戚献计下，利用匡胤与耶律安图议和，暗里派兵打契丹，二人因此渐生嫌隙，及后匡胤屡立大功，深受官民爱戴，荣恐他拥兵叛变，施计夺其兵权，荣、匡胤终正面冲突。 　　最后，匡胤败荣，被将领黄袍加身，拥立为帝，开国号宋，是为宋太祖。Analysis: Since JS can represent an integer range of-2 53 ~ 2 53, the a here has exceeded 2 53, similar to question 6, the maximum value plus a number is still the maximum value. So it's still a+= is to inform you when this event occurs, and -= is to inform you no longer when this event occurs.板栗继续道：这一跑可不得了了，那‘哗哗声一直跟着他，声音还大。　　蒂姆和有“超级妈妈”之称的妻子卡罗尔及异常聪慧的7岁女儿塔比莎、刚出生超级可爱的婴儿蒂娜住在郊区，塔比莎是一所有威望的教育机构的尖子生，将叔叔泰德视为偶像，想成为他那样的人，但蒂姆担心她太过用功，导致无法过一个正常的童年。当蒂娜作为宝贝集团最高机密特工的真实身份曝光，目的是为了揭开塔比莎学校及其神秘创始人阿姆斯特朗博士背后的黑暗秘密时，邓普顿兄弟将以一种意想不到的方式重聚，两人重新审视家庭的意义，明白什么才是最重要的。