8 路车每4 分钟发一次,5路车每7 分钟发一次,这两路汽车早晨5：40 同时...

　　英语笑话故事
　　He Won
　　Tommy:How is your little brother,Johnny?Johnny:He is ill in bed.He hurt himself.
　　Tommy:That's too bad.How did that happen?
　　Johnny:We played who could lean furthest out of the window,and he won.
　　他赢了
　　汤姆：约翰尼,你小弟弟好吗?
　　约翰尼：他害病卧床了.他受了伤.
　　汤姆：真糟糕,怎么回事儿?
　　约翰尼：我们做游戏,看谁能把身子探出窗外最远,他赢了.
　　I Have His Ear in My Pocket
　　Ivan came home with a bloody nose and his mother asked,"What happened?"
　　"A kid bit me," replied Ivan.
　　"Would you recognize him if you saw him again?" asked his mother.
　　"I'd know him any where," said Ivan."I have his ear in my pocket."
　　他的耳朵在我衣兜里
　　伊凡鼻子流着血回到家里.他妈妈问,“发生了什么事?”
　　“一个男孩咬了我一口,”伊凡说.
　　“再见到他你能认出来吗?”妈妈问.
　　“他走到哪里我都能认出他,”伊凡说.“他的耳朵还在我衣兜里呢.”
　　A Good Boy
　　Little Robert asked his mother for two cents."What did you do with the money I gave you yesterday?"
　　"I gave it to a poor old woman," he answered.
　　"You're a good boy," said the mother proudly."Here are two cents more.But why are you so interested in the old woman?"
　　"She is the one who sells the candy."
　　好孩子
　　小罗伯特向妈妈要两分钱.
　　“昨天给你的钱干什么了?”
　　“我给了一个可怜的老太婆,”他回答说.“你真是个好孩子,”妈妈骄傲地说.“再给你两分钱.可你为什么对那位老太太那么感兴趣呢?”
　　“她是个卖糖果的.”
　　Drunk
　　One day,a father and his little son were going home.At this age,the boy was interested in all kinds of things and was always asking questions.Now,he asked,"What's the meaning of the word 'Drunk',dad?" "Well,my son," his father replied,"look,there are standing two policemen.If I regard the two policemen as four then I am drunk."
　　"But,dad," the boy said," there's only ONE policeman!"
　　醉酒
　　一天,父亲与小儿子一道回家.这个孩子正处于那种对什么事都很感兴趣的年龄,老是有提不完的问题.他向父亲发问道：“爸爸,” “唔,孩子,”父亲回答说,“你瞧那儿站着两个警察.如果我把他们看成了四个,那么我就算醉了.” “可是,爸爸,”孩子说,“那儿只有一个警察呀!”
　　Hospitality
　　The hostess apologized to her unexpected guest for serving an apple-pie without any cheese.The little boy of the family left the room quietly for a moment and returned with a piece of cheese which he laid on the guest's plate.The visitor smiled,put the cheese into his mouth and then said:"You must have better eyes than your mother,sonny.Where did you find the cheese?" "In the rat-trap,sir," replied the boy.
　　好客
　　由于客人在吃苹果馅饼时,家里没有奶酪了,于是女主人向大家表示歉意.这家的小男孩悄悄地离开了屋子.过了一会儿,他拿着一片奶酪回到房间,把奶酪放在客人的盘子里.客人微笑着把奶酪放进嘴里说：“孩子,你的眼睛就是比你妈妈的好.你在哪里找到的奶酪?” “在捕鼠夹上,先生.”那小男孩说.
　　英语小笑话
　　上个星期五我穿了一件 Adidas 的衣服去打球,一个老美看到就笑我说,"Do you
　　know what does it mean?It means All Day I Dream About Sex.我整天都在想著
　　性,缩写正好是 Adidas) " 我正惊讶他怎么反应这么快,联想力这么丰富时,旁边的
　　一个老美帮我解围,他说,有一个很著名的合唱团 Korn,他们的招牌歌之一就是
　　A.D.I.D.A.S,(All day I dream about sex)所以呢,这个典故可是很多老美都耳熟
　　能详的喔!下次就换你去取笑老美了.

11分钟!先依次用湿抹布清洁3扇窗户,用时6分!再用干抹布清洁第一块!再等一分钟,清洁第二快!再等一分钟清洁第三块!是五分钟!共计11分钟!

（1 ）先淘米，再用电饭煲煮饭，在煮饭的同时择菜、洗菜、切菜、炒菜。共需要32 分钟。（2 ）①树立全局观念，立足整体，统筹全局，选择最佳方案，实现整体的最优目标。②掌握系统优化的方法，运用综合的思维方式，注重系统内部结构的优化。

由题意得V甲：V乙=5：4,S甲：S乙=15：16
所以S甲：S乙=(V甲*T甲):(V乙*T乙)=15:16
即T甲：T乙=15V乙:16V甲=(15*4):(16*5)=3:4
T甲=（3/4）T乙=（3/4）（9-8）=3/4小时=45分钟
所以甲的出发时间为9点-45分=8点15分.

1、葡萄糖：C6H12O6
2、银氨溶液或新制氢氧化铜
3、显蓝色