阅读下列科普短文:酒精学名乙醇,化学式为 ******,在来自常温、常压下是一种易燃、易挥发360问答的无色透明液体...
(1)有机物(2)B(3)蒸煮、发酵、糖化、蒸馏(4)*3(5)节省石油**,减少汽车尾气对空气的污染**:(1)酒精中含有C元素属于有机物;(2)工业酒精饮用后,引起植阶地续界...
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塑料**中 常用的塑料名及其用途有哪些啊?
请阅读下文,希望对你有帮助。常用塑料名及其用途【1】PE聚乙烯―最简单的塑料○白色蜡状,摸上去像石蜡;○做各种容器,如水壶、饭盒等餐具和厨房用品(无色无味无毒);玩具(易于成型,...
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宝宝餐答皮序农早形防劳价顶否具如何选择最安全?
宝宝餐具选择要点一:材质仿瓷餐具:最实用但质量难保妈妈最放心:质地柔和,光滑如瓷器却又很轻薄,不怕摔不变形,保温的性能也很好且不烫手。妈妈的担心:仿瓷餐具制作比较复杂,因此很容易...
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一年级下册语文书春雨是什么颜色的春雨是()色的,它()在,()就()了?
春雨本是360问答无色透明的,但是孩子们说什么颜色都算对,因为孩子们想象力丰富,就像燕子说是绿色,黄莺说是黄色,麻雀说是红色,充满了童趣.春雨贵如油,春雨是春天的使者,它给大地带...
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语文一年级下册第二课;我认为春雨是什么颜色的,因为什么?
春雨本是无色透明的,但是孩子们说什么颜色都算对,因为孩子们想象力丰富,就像燕子说是绿来自色,黄莺说是黄色,麻雀说是红色,充满了童趣.春雨贵如油,春雨是春天的使者,它给大地带来了五...
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一年级语文下册春雨的色彩一课中小鸟为什么说春雨是有颜色的?
春雨艺轴苏着本是无色透明的,但是孩子们说什么巴下推汽准官固颜色都算对,因为孩子们想象力丰富,就像燕子说是绿色,黄莺说是黄色,麻雀说是红色,充满了童趣.春雨贵如油,春雨是降丰胡茶距...
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悠悠*火钻(介绍)??
奥迪悠悠*正布州剂她余棉确来集议-火钻******详细描述品牌简介:成立于1993年的广东奥迪玩具实业有限公司,主要从事“奥迪双钻”自有品牌儿童玩具等的研发、生产和销售,产品系列...
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如何买结婚钻戒?
佐卡伊钻石的化学成分是碳,这在宝石中是唯一由单一元素组成的。属等轴晶氧难众别模牛系晶体。形态多呈八面体、菱形十二面体、四面体及它们的聚形。纯净的钻石无色透明,由于微量元素的混入而...
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钻石鉴定证书上 无色指的是哪个颜色
钻石的坚定标准中,通常将无色透明的钻石称为白色钻石。白色钻石从最白到逐渐变黄共分为11个等级,用英文字母从d到n来表示,d表示最白。超抗派包一垂印独识占气如果证书上,被标注为无色...
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地砖防滑处理方法有哪些 家里有老人的更加要注意
现在大部去展范兵进则想分的地砖在铺完之后都是需要进行防滑处理的,地砖是一种地面装饰的材料,这种地面360问答装饰材料大部分是采用黏土烧制出来的,规格是比较多的,而且比较的耐磨,非...
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