平行流水作业

英语翻译主要是描述一个城市街道有点吵,然后紧跟着这句话,该怎么翻译呢? It seems that nobody knows what （）（happen）to this old city yesterday 动词填空. 检验硫酸根离子时 如果原溶液中有银离子 加盐酸产生Agcl 然后是要过滤么?过滤后再加Bacl2检验硫酸根离子时 如果原溶液中有银离子 加盐酸产生Agcl 然后是要过滤么?过滤后再加Bacl2 （检验SO4 My parents went to Mount Tai last week.(对went to Mount Tai 提问)_____ _____ _____ parents _____ last week? 城市生活污水对人类动物有何影响 电子集成电路一般承受的温度是多少 Sometimes I go to _the cinema__with Nick on Satnrday对划线部分提问 I go to the cinema (once a month).（对划线部分提问） She often invites me to go to the cinema.就划线部分提问,划线部分为go to the cinema.does she often you to 《邓稼先》怎么设计导语 一天7700吨生活污水的河道怎么治理?已启用水生植物和曝气设备,一天8000吨居民生活污水,河道长1000米宽8米,无生态护坡,污水管道密布 生物质电厂飞灰排入河道会对环境造成影响吗?什么影响? 当地壳抬升时,不考虑气候影响,快速抬升和慢速抬升对河流的状况分别有何影响 8k纸张是多大?如何计算纸张的大小? I paid him a visit. I（ ） a.visited him b.made him visit c.did him a visit d.paid for a visit the president paid—— a visit to China.A four days B four-day C four-days D four-days’ President Bush,为什么President在前? 铅蓄电池：Pb+PbO2+2H2SO4=2PbSO4+2H2O（1)写出电极反应式（2）电解H2SO4浓度怎么变化?（3）当通过1mol电子,负极增重多少克 Do you go to the cinema e( ) Saturday and Sunday?写出句中所缺单词 生活污水系统组成部分及各部分的作用有哪些? 放电时,正极反应为:PbO2 + 4H+ + SO42- + 2e- = PbSO4 + 2H2O.这是铅蓄电池的电极反应,为什么有的地方在化学式后面要标明物质的状态呢 I am afraid that you have to ____ your optimistic views in light of the tragic news that has justjust arrived.请问空格处是用alter吗?为什么? PbO2 + 4H+ + SO42- + 2e- = PbSO4 + 2H2O ___ you ever ___ of this news that Jack will come to China next month?(hear) PbO2 + 2e- + SO42 + 4H+ ＝ PbSO4 + 2H2O假如左边的2e和SO4根以及H离子中和了 那么PbO2降为PbSO4时的电子从哪来? The news has just ____ that the Queen is going to have a baby next March. the news______the leaders are coming next week______not ture.a.that is B.which is为什么选that,而不选which呢 ___ you___(go) to the most beautiful cinema last night? 地理环境对人类活动方面有哪些影响? 铅蓄电池是化学能源,工作时电池总反应为PbO2+Pb+2H2SO4=2PbSO4+2H2O.实验室用铅蓄电池做电源电解饱和食盐水制取氯气,今若制得Cl20.05mol,这时电池内消耗的H2SO4的物质的量至少是（ ） 英语翻译I have been to Beijing,Xi'an,Dalian,Tianjing,Hangzhou,Jilan.I like then all.I always have a wonderful time when I travel in China. 化学问题铅蓄电池总反应为pbo2+pb+2H2SO4===2pbSO4+2H2O铅蓄电池总反应为pbo2+pb+2H2SO4===2pbSO4+2H2O请问正极反应是?