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150 Chapter 1 The History and Future of Computers 3.2 Boolean Algebra Table 3-2 Distributivity Idempotency Absorption laws 分配律同一律吸收律 a=ab+ac a+= a+a=a aa=a a+ab=a a=a'=a'b''=a'+b' DeMorgan's laws德摩根定理计算机专业英语 1-151 Chapter 1 The History and Future of Computers 3.2 Boolean Algebra Since a finite set of n elements has exactly 2n subsets, and it can be shown that the finite Boolean algebras are precisely the finite set algebras, each finite Boolean algebra consists of exactly 2n elements for some integer n.

由于n个元素的有限集有且只有个子集由于个元素的有限集有且只有2n个子集，而且很显然有限布个元素的有限集有且只有个子集，尔代数一定是有限集合代数，所以对某个整数n而言而言，尔代数一定是有限集合代数，所以对某个整数而言，每个有限布尔代数也有且只有2n个元素。例如，上文定义的集合T的限布尔代数也有且只有个元素。

31 Chapter 3 Number Systems and Boolean Algebra 3.2 Boolean Algebra Table 3-2 Distributivity Idempotency Absorption laws 分配律同一律吸收律 a=ab+ac a+= a+a=a aa=a a+ab=a a=a'=a'b''=a'+b' DeMorgan's laws德摩根定理计算机专业英语 3-32 Chapter 3 Number Systems and Boolean Algebra 3.2 Boolean Algebra Since a finite set of n elements has exactly 2n subsets, and it can be shown that the finite Boolean algebras are precisely the finite set algebras, each finite Boolean algebra consists of exactly 2n elements for some integer n.

由于n个元素的有限集有且只有个子集由于个元素的有限集有且只有2n个子集，而且很显然有限布个元素的有限集有且只有个子集，尔代数一定是有限集合代数，所以对某个整数n而言而言，尔代数一定是有限集合代数，所以对某个整数而言，每个有限布尔代数也有且只有2n个元素。例如，上文定义的集合T的限布尔代数也有且只有个元素。

Evanescence: Taking Over Me You don't remember me, but I remember you I lie awake and try so hard not to think of you But who can decide what they dream, and dream I do I believe in you I'll give up everything just to find you I have to be with you To live, to breathe You're taking over me Have you forgotten all I know, and all we had You saw me mourning my love for you, and touched my hand I knew you loved me then I believe in you I'll give up everything just find you I have to be with you To live, to breathe You're taking over me I look in the mirror and see your face If I look deep enough So many things in side that are Just like you are taking over I believe in you I'll give up everything just to find you I have to be with you To live, to breathe You're taking over me I believe in you I'll give upeverything just to find you I have to be with you To live, to breathe You're taking over me You're taking over me You're taking over me

你不记得我，但我记得你我躺着努力不去想你但是谁能决定他们的梦呢，我也一样我相信你我要放弃一切只为找到你只有和你在一起才能生存，才能呼吸你是我的全部你忘了我们的从前么你看到我为你哀悼我的爱，你触碰我的手我知道你是爱我的我相信你我要放弃一切只为找到你只有和你在一起才能生存，才能呼吸你是我的全部我在镜子里看到了你的脸我仔细的看我发现有很多东西正如你占据着我一样我相信你我要放弃一切只为找到你只有和你在一起才能生存，才能呼吸你是我的全部我相信你我要放弃一切只为找到你只有和你在一起才能生存，才能呼吸你是我的全部你是我的全部你是我的全部我自己翻的就这样啦您凑合着看看吧

Only here and now for the first time in his life Pierre fully appreciated the enjoyment of eating when he was hungry, of drinking when he was thirsty, of sleep when he was sleepy, of warmth when he was cold, of talking to a fellow creature when he wanted to talk and to hear men's voices.

只有在这里，只有在这种时刻，只有当他饥饿的时候，皮埃尔才第一次完全体会到吃东西的快乐，只有当他口干的时候，才体会到喝水的快乐，只有当他寒冷的时候，才体会到温暖的快乐，只有当他想睡觉的时候，才体会到进入梦乡的快乐，只有当他渴望和人谈话和听见人的声音的时候，才体会到和人谈话的快乐。

No He won't have it , he knows his whole back city's ropes It don't matter, he's dope He knows that, but he's broke He's so stacked that he knows When he goes back to his mobile home, that's when it's Back to the lab again yo This whole rap shit He better go capture this moment and hope it don't pass him You better lose yourself in the music, the moment You own it, you better never let it go You only get one shot, do not miss your chance to blow This opportunity comes once in a lifetime yo The soul's escaping, through this hole that it's gaping This world is mine for the taking Make me king, as we move toward a, new world order A normal life is borin, but superstardom's close to post mortar It only grows harder, only grows hotter He blows us all over these hoes is all on him Coast to coast shows, he's know as the globetrotter Lonely roads, God only knows He's grown farther from home, he's no father He goes home and barely knows his own daughter But hold your nose cuz here goes the cold water His bosses don't want him no mo, he's cold product They moved on to the next schmoe who flows He nose dove and sold nada So the soap opera is told and unfolds I suppose it's old potna, but the beat goes on Da da dum da dum da da You better lose yourself in the music, the moment You own it, you better never let it go You only get one shot, do not miss your chance to blow This opportunity comes once in a lifetime yo No more games, I'ma change what you call rage Tear this mothafuckin roof off like 2 dogs caged I was playin in the beginnin, the mood all changed I been chewed up and spit out and booed off stage But I kept rhymin and stepwritin the next cypher Best believe somebody's payin the pied piper All the pain inside amplified by the fact That I can't get by with my 9 to 5 And I can't provide the right type of life for my family Cuz man, these goddam food stamps don't buy diapers And it's no movie, there's no Mekhi Phifer, this is my life And these times are so hard and it's getting even harder Tryin to feed and water my seed, plus See dishonor caught up bein a father and a prima donna Baby mama drama's screamin on and Too much for me to wanna Stay in one spot, another jam or not Has gotten me to the point, I'm like a snail I've got to formulate a plot fore I end up in jail or shot Success is my only mothafuckin option, failure's not Mom, I love you, but this trail has got to go I cannot grow old in Salem's lot So here I go is my shot.

无 他不会有，他知道他的整个回城的绳索它不处理此事，但他的涂料他知道，但他的突破他的，所以堆叠他知道当他回到他的手机在家，就什么时候，它的回到实验室又摇摇这整个说唱为Shit 他最好去捕捉这一刻，并希望它不通过他您更好地失去了自己在音乐，时刻你拥有它，你最好永远不会放手你只能获得一杆，千万不要错过你的机会，以打击这个机遇而来的一生中只有一次的心灵灵魂的逃亡，透过这个洞，它的溃烂这个世界是矿井为录取令我国王，因为我们走向一个新的世界秩序过正常的生活，是borin ，但superstardom的接近邮政砂浆它不仅日益困难，只有长大白热化他的打击我们所有这些锄头，是所有对他的海岸到海岸的表演，他知道作为globetrotter 寂寞的道路，只有上帝知道他的成长到离家远，他的父亲并没有他回家，勉强知道自己的女儿但对于你的鼻子cuz这里有云冷水他的老板不希望他没有谟，他的冷战产物他们转移到下一schmoe谁流向他的鼻子鸽派和出售纳达所以肥皂歌剧是告诉，并逐步落实我想它的旧potna ，但在街上巡逻下去大达达姆弹达达姆弹达大您更好地失去了自己在音乐，时刻你拥有它，你最好永远不会放手你只能获得一杆，千万不要错过你的机会，以打击这个机遇而来的一生中只有一次的心灵没有更多游戏，我是改变你们称之为愤怒催泪这mothafuckin屋顶起飞一样二日犬笼我是playin在beginnin ，心情，一切都变了我是咀嚼起来，吐出一片嘘声起飞阶段但我一直rhymin和stepwritin未来的CYPHER 最好相信有人的payin该pied伯尔所有的痛苦内扩增事实我不能得到我的9至5月我不能提供适当类型的生命，因为我的家庭 cuz男子，这些goddam粮票不买尿布它的不看电影，有没有mekhi phifer ，这是我的生命这些时代，所以很难和它变得更难 tryin到饲料和水我的种子，加上见荣辱赶上了bein父亲和表面唐娜宝宝妈妈戏剧的尖叫和太多，我想留在现场的一个，另一个果酱或不得到了我的一点，我想蜗牛我必须制订一项阴谋前列我结束了在监狱或打针成功是我唯一的mothafuckin选择，失败的不是妈妈，我爱你，但这个线索已经去我不能老在塞勒姆的地段所以在这里，我去的是我的了一枪。

Also just because of this, only when the united proletarian hold the real property and the highly generally developed productive forces, thus formed the real collective, eliminated the social class, eliminate the national: the kind of false collective pseudomorph, thus eliminated the private ownership, re-established"worker's individual system of ownership";Thus eliminated the force spontaneous division of labor, established the conscious division of labor; thus eliminated the nature of employment work , caused the physical production work to be consistent with the self-activity, caused the work to become people's first need; thus eliminated individual regional existence, made individuals become"world history individual"did we say only then by that time it can realize"the free individuality"truly; only then by that time, it can realize the independent individuality, free and comprehensive development of"every individual"; only then by that time the human society can achieve the ancient society's higher regression.

也正因为如此，只有联合起来的无产者通过真实的财产占有和高度而普遍发展起来的生产力；从而形成真实的集体，消除阶级、国家这种虚假的集体的假象；从而消除私有制，重新建立"劳动者的个人的所有制"；从而消除强迫的自发的分工，建立起自觉地分工；从而消除劳动的雇佣性质，使物质生产劳动同自主活动相一致起来，使劳动成为人们的第一需要；从而消除了个人的地域性存在，成为"世界历史的个人"；只有到那时，才可以说真正实现了"自由个性"，也只有到那时，才可以实现了"每一个个人"的个性独立、自由而全面的发展；也只有到那时，人类社会才真正达到了古代社会的更高意义上的复归！

Although up to 89.0% of participants agreed with the important roles and function of preceptors to new staff nurses, only 29.4% of them had enough time to direct those beginners; also, only 42.1% of senior nurses would like to teach new staff nurses during their off-duty period. 42.6% and 55.2% of them were well prepared to be preceptors and willing to teach novices respectively.

虽有高达89.0%认同护理临床教师对新进护理人员的角色与功能非常重要，却只有29.4%表示有足够的时间指导新进人员，只有42.1%同意花费上班外时间指导新进人员，只有42.6%表示已经准备好担任护理临床教师，愿意担任护理临床教师指导新进人员的也只有55.2%。

Feiyes.net ★ rodick 制作 Cause it's hard for me to lose In my life I've found only time will tell And I will figure out that we can baby We can do a one night stand, yeah And it's hard for me to lose in my life I've found outside your skin right near the fire That we can baby We can change and feel alright I'm a little used to wandering outside the rain You can leave me tomorrow if it suits you just the same But I don't know enough, I need someone who leaves the day Hey yeah Cause it's hard for me to lose In my life I've found only time will tell And I will figure out that we can baby We can do a one night stand, yeah And it's hard for me to lose in my life I've found outside your skin right near the fire That we can baby We can change and feel alright Free Loop－－Daniel Powter Cause it's hard for me to lose In my life I've found only time will tell I will figure out that we can baby We can do a one night stand, yeah And it's hard for me to lose in my life I've found outside your skin right near the fire That we can baby We can change and feel alright Cause it's hard for me to lose In my life I've found only time will tell And I will figure out that we can baby We can do a one night stand, yeah And it's hard for me to lose in my life I've found outside your skin right near the fire That we can baby Over...

Feiyes.net ★ rodick制作原因很难对我来说，失去在我的生命中我发现只有时间才能告诉我们我将找出我们能够婴儿我们可以做一个一夜情，是啊我们很难对我来说，失去在我的生命我发现你的皮肤外面附近的火灾我们能够婴儿我们可以改变和感觉好吗我有点用以外的雨游荡你可以离开我明天如果适合你一样但我不知道不够，我需要有人谁离开天嘿是啊原因很难对我来说，失去在我的生命中我发现只有时间才能告诉我们我将找出我们能够婴儿我们可以做一个一夜情，是啊我们很难对我来说，失去在我的生命我发现你的皮肤外面附近的火灾我们能够婴儿我们可以改变和感觉好吗免费环路-丹尼尔Powter 原因很难对我来说，失去在我的生命中我发现只有时间才能告诉我们我会弄清楚，我们才能婴儿我们可以做一个一夜情，是啊我们很难对我来说，失去在我的生命我发现你的皮肤外面附近的火灾我们能够婴儿我们可以改变和感觉好吗原因很难对我来说，失去在我的生命中我发现只有时间才能告诉我们我将找出我们能够婴儿我们可以做一个一夜情，是啊我们很难对我来说，失去在我的生命我发现你的皮肤外面附近的火灾我们能够婴儿超过。。。

I will be leaving a town where there is only one main street, Main Street; one town pharmacy, Town Pharmacy; one -1- town bookshop, Town Book Shop; and one town restaurant, Town Restaurant.

我家在新泽西的一个小镇上。镇上只有一条主要街道，名字叫&主街&；小镇上只有一家药房，名字叫&小镇药房&；小镇上只有一家书店，名字叫&小镇书店&；小镇上只有一家饭店，名字叫&小镇饭店&。

I will be leaving a town where there is only one main street, Main Street; one town pharmacy, Town Pharmacy; one town bookshop, Town Book Shop; and one town restaurant, Town Restaurant.

镇上只有一条主要街道，名字叫&主街&；小镇上只有一家药房，名字叫&小镇药房&；小镇上只有一家书店，名字叫&小镇书店&；小镇上只有一家饭店，名字叫&小镇饭店&。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。