形容努力的成语

【急求】英语动脑筋：What comes twice in a moment,once in a minute and never in a hundred times? 据统计,中国平均每人每天产生大约1.5KG垃圾,假设从中国家庭、商店.工厂等产生的垃圾可压缩成每边0.5米的立方体,每一个这样的立方体约由100KG的垃圾组成.问：若按人口总数约为1.3*10的九次 what comes once in minute,twice.in moment,never appear in a thousand years. What comes once in a minute ,twice in a moment ,but never in a thousand years?的答案是什么 汽车需行驶108KM的距离,当行驶到36KM处时发生了故障,以后的速度每小时减慢9KM,到达时比预定时间晚24分钟,求汽车原来的速度.救救我啊问题补充：请大家注意,是以后的速度每小时减慢9KM,不是 已知：a=2001,b=2002,c=2003,求a²+b²+c²-ab-ac-bc 只有一天 古诗词过松源晨炊漆公店（莫言下岭便无难）如梦令（常记溪亭日暮）观书有感（半亩方塘一鉴开）这三首古诗怎么解释啊（括号里的都是它的第一句）是整首诗的意思 英语选择22到28 已知a2-4a+b2-2b+5=0,你能用完全平方公式求出a. 英语28选什么解释 4a方+b方+4a-2b+2=0则ab/a+b 的值为 我非常非常非常的感谢你们! 三十四到四十一题选什么.英语的 Here's something about the English people .In England,people d____usuallytalk very much.You can go on a bus ,o____on a train ,and everyone s_____looking out of the window .Often r___books and newspapers.But they do ( )Each——here should say sth about the movice A.person B.men C.people D.human being怎么思考的 In england people often talk aboutln england people often talk about the weather because they can experience (经历）four sea_sons in one day.ln the moming the weaher is warm just like in spring.An hour later black clouds come,and then it rains har 苏教版语文1到6年级12册课本上所有古诗（分类）十万火急! 英语翻译conversation是谈话的意思.帮下我么?这是最后一道题目咯. what's the favourite subject of conversation for english people what is the favourite subject of conversation in England?这句话听录音,怎么老听不出of却老听到读类似does的音呢,是subject 与of连读了,还是怎么回事 简便运算;10.51-(2.67-2.49) In England, people often talk about the weather because they can experience (经历) four seasons in one day. In the morning the weather is warm just like in spring. An hour later, black clouds come and then it rains hard. The weather gets a little c 英语阅读理解,ln england people often talk about the weather because they can experience (2.From the story we know that _____come and them there is a heavy rain.A,sunshine an snow B,black cloudsC.summer and winter C.spring and autumn3."People ca why do English people talk so often about the weather when they stat a conversation?A.safe B.aensitive C.amazing D.ordinary 同义句 People often talk of weather in England.Weather ______ ______ people's _______ in England 45一46+47一48十49一50十51=多少? 一个样本含有下面10个数据:52,51,49,50,47,48,50,51,48,53,则最大值是--,最小值是--,如果组距为1.5,则应一个样本含有下面10个数据：52,51,49,50,47,48,50,51,48,53,则最大值是－－,最小值是－－,如果组距为1. 英语翻译we notice that people in England don't drive on the same side of the road as American drives 还有 the same 能放到as的前面吗 就像 don't drive on the side of the road the same as.好像定冠词用的太多了 IN England ,drive on the left side of the road的意思 ( ).Drivers drive on the _____side of the road in England.A.right B.left为什么呢? in england and australia,drivers drive on the( )side of the road