霞的四字词语

请问我这样翻译对吗?“我已经有半年没坐过火车了”“I have not been by train for half a year” we drink the water from the w_____Many o____people have come to china to study chineseOur _____(祖先)were form original forest 综合布线系统由哪几部分构成,每一部分的作用是什么 综合布线系统由哪几个部分组成? 综合布线系统的组成和各子系统的功能 在中国标准中,综合布线系统有哪几个部分组成 综合布线系统,由哪几部分组成? 关于have been的英语 求解!have been后面跟副词时只用have been,而不可用任何介词.这句话没听懂,能解释下并给些例句吗?谢谢! 下面算式中,每个字母代表什么数字?（1）ABC+AAB= (2)aaba+cab= 数学动脑筋AAB+BC+C =CAB What are the advantages and disadvantages of having a subway 帮我想想有什么好的和坏的10句话就OK了```写得好的有加分哦!还有更多的吗? △ABC中,∠CAB=120°,AB,AC的垂直平分线分别交BC于点E F,则角EAF等于() People in the _____ (western)celebrate Mother's Day in different ways What are the advantages and disadvantages to having a multicultural society in US是美国文化中的问题希望得到英文答案 同义句转换.the businessman bought our school some latest teaching equipment.some latest teaching equipment__ __ __ our school by businessman. his busy day初一英语作文要一般现在时 1最高价氧化物对应的水化物中,碱性最强的物质与呈两性的氢氧化物反应的离子方程式为 2钠和镁比较、化学性质较活泼的是--------证明的实验方法是---------证明CL与Br的单质活泼性较强的离子 老师好.能形成两性氢氧化物的元素是什么?该元素与K 的最高价氧化物的水化物反应的化学方程式? 两性氢氧化物与最高价氧化物的水化物中酸性最强的离子的反应方程 Ga的最高价氧化物的水化物是两性氢氧化物么 GaAs中两个元素的价态分别为多少 如图7-5,在三角形ABC中,角B=60度,角C=45度,D,E分别在AB,AC上,将三角形A BC以DE折叠,点A恰好落在BC边上的F处.若A,F两点之间的距离为6,则EF的长是（ ） A 3√3 B 2+√3 C 3+√3 D 2√3 这题可出错,不确定 （ i have some ___(japan) pen pals 用正确形式填空 But I think they taste really terrible. The apple taste good.They ____well and ____alrady.A .sell;have been sold outB.sold;has sold outC.sell;sell outD.are sold;have been sold out2.I heard XTX will sing at the Grand Theatre.-- Where did you _______?A.put that upB.make that upC.take that up -______do the shrimp dumplings taste?-They taste______.A.What,delicious B.How,not salty C.How,too salty D.What,tasty people are d__every day ,but their names are same横线上应填什么单词 ___people are the same.A.No B.Not C.BothC肯定是错的.希望告诉一下是A还是B,要详情. Be的氧化物的水化物可能具有两性为什么是错的?我觉得是对啊！不是有对角线规则吗？ how is the weather today?it is-—cold and-—humid.选项:a kind of.kinds of.kind of.pretty.请附带 各选项语法!谢啦. 1.The ____ is very cold in my city now.A.jacket B.job C.food D.weather2.---How is the weather today?---It is ___.It may rain.A.sunny B.cloudy c.dry D.cool taste(现在分词) The weather here was kind of cold last week.为什么不是a kind of.