7跟7的倍数有哪些

一’写出下列反应的化学方程式：1‘用烧碱溶液吸收二氧化硫；2’纯碱与石灰水；3‘熟石灰与盐酸；4’硫酸雨苟性钠；5‘生石灰与盐酸；6’石灰石与稀盐酸；7‘小苏打中和过多的胃酸； 初三化学 常见的酸和碱 第二题选什么 这个题的知识点是什么 常见的酸和碱一定质量的溶质质量分数为10％的A溶液和一定质量的溶质质量分数为20％的NaOH溶液恰好完全反应,生成红褐色沉淀B,化学方程式为：A+3NaOH=B↓+3NaCl（已配平）.（1）A物质中阳离子 订书机上规格26/6、24/6到底是什么含义?我量过,这不是机或对应针的尺寸,目前的回答什么都不对或不全面 订书机的钉子型号 26/8 24/8 23/8 有什么区别? 我知道那个/8是指的钉子长度是8毫米 那前面的26 24 23又是什么意思呢? 订书机上的26/6是什么意思 如何判断一般能订多少张纸啊 订书机上所标示的23/6 或 23/24 是什么含义?譬如得力0393型订书机上标的23/6 23/24 试论掌握知识和发展智力相统一的规律. 请问一下这两张智商图的规律是什么?看不懂怎么解啊?我看不出他的规律. 宝盖头加个水字读什么 were the situation to continue as it is , the future generation would not bother to think of excuse for us. 麻烦大神翻译下这个句子吧,主要是后面部分,谢谢! We were puzzled about the situation,______what we should do next.wonderto wonderwonderedwondering is getting difficult to continue my work as if nothing were wrongit is getting difficult to continue my work as if nothing were wrong If it were not for their support,we would be in a diffcult situation那个were为什么不是were,而不是 is 或was或 are pay the bill和pay the price的区别 what's the price of the clothes?they_______180RMB A;pay B:take C:cost D;spend Fight, fight to death!怎么翻译? 英语翻译Yellowcard - FightingI said I'd moved on and I'll leave it alone,But before I walk out there is something that I need you to know,I got lost in a blink of an eye,And I can never get back,no I've never got back,You were not there when I wa How much did he pay for this pair of trousers?的同义句是什么? 我名字——易鹏,想取个好听点的英文网名,不甚感激! This blouse is too small.Do you have a ____(big)one?How much ___(be)this pair of trousers?↓This blouse is too small.Do you have a ____(big)one?How much ___(be)this pair of trousers?This year's football cards ___two yuan each. I like dark blue_____this one is too light.A.and B.but 连词成句、 blue、is、this、big、one、and、light 诸位,帮忙翻译一句而已.he said goodbye to and left ..I prefer blue.but this bule is too dark -----(I) is blue ,and this one is gray 求翻译：Because no one is no duty in this light blue little summer. at a future 和 in future的区别 "线段的垂直平分线上的点到这条线段两个端点的距离相等"的否命题是什么? 证明：到线段两个端点距离相等的点在这条线段的垂直平分线上 线段的垂直平分线的点到这条线段俩个端点的距离相等?改写成"若P.则Q"的形式 逆命题.否命题.和逆否命题.随便判定下它们的真假? 五条关于大海的诗词名句,三条关于保护大海的宣传语 翻译：从现在开始我要抓紧练习英语,挣取以后用英语和您对话.