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我家有一个大鱼池,现在一到晚上鱼就到处游,有些还聚在一起会拍打水面,这是怎么回事? 请问含铁的疏素菜有哪些? 新民主主义革命是无产阶级领导的,为什么性质会是资产阶级民主革命? 男生进 男生发这个想说明什么 Ann has gone to Shanghai.----So____her parents.A.did B.has C.have 这道题肿么做耶? 地球一直旋转着,为何会有一年四季? have you ( )检查 your car?里面的check应该用什么形式?为什么? it is a dangerous means of transport and the buses sometimes break down.翻译成汉语咋说啊 谁会翻译以下句子 1.It is a dangerous means of transport and the buses sometimes break down. ."not all of the dinosaurs were dangerous"this means_____a.none of the dinosaurswere dangerousb.all of the dinosaurs were not dangerousc.few of the dinosaurs were dangerousd.no dinosaurswere dangerous my happy vacation80个单词 Im very happy that vacation come soon come错了 换一个 National Day is coming. I’m very happy because I can relax myself during the vacation.I’m going to Beijingfor vacation with my parents. We are leaving forBeijingon 29th of September. We are going there by plane. We are staying there for about 5 d 急帮我写一个30字HAVE A HAPPY AND HELPFUL VACATION的作文 英语的3Q The store s____ many good things(填空) The store---[sale] all kinds of school things.用括号内的词的适当形式填空 The store ( sales) kinds of things.括号中的sales能否换成sells The store many ( )kinds of delicious food.从offer,happen,intereating,ride,famous中选择,并用正确形式填出 煤矿水质分析有没有一个标准啊?混合水的标准是什么? 下雨天为什么鱼好钓下雨天好钓鱼 何为水质分析?怎样进行水质分析~~·? 地热深井水水质分析利用方面的问题地热深井水氟离子含量为6.5 mg/L,偏硼酸含量32.25 mg/L,用于洗浴,对人体有什么优缺点? 工作需要了解2010年南宁市的自来水水质分析,谁有,或者是告诉我去哪里查询也可以. 自来水水质分析取样规定?如何取样? You must have waited for a long time,_____ you?A mustn't B didn't C haven't D hadn't A+B=C+D AC为单质,BD为化合物,这个反应一定是置换反应么?不是的话 请举出一个例子 英语翻译我上一个假期是繁忙的又是简单而快乐的,因为那是一个有很多作业的假期!工作日时,每天早晨8点起床,吃过早餐后,就开始做作业.中午吃完午饭后,睡2小时午觉,又开始做作业,一直到 What a nice bicycle!How long ___you____it?Just a week.A will,buy B.did,buy C.are,having D.have,had –What a nice bike How long _you _it A will ;by B did; by C are ; having D.have ; had1、keep our body_____.Agood B unhealthy C active D beautiful(哪个更合适)2、I come to sngool by ____(foot) every day.(完形填空)3、—What's wrong?— That's a nice bike!How long _____ you _______ it?--Just two weeksA will;buy B did;buy C are;having D have ;had ---( ) do you play basketball?---Just the weekend.A:How long B:How often 高二化学有机难题求高手5.下列对于溴乙烷、乙醇消去反应的叙述中正确的是()A.反应条件相同B.产物中的有机化合物相同C.都生成水D.都使用温度计c对吗,答案是B