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高分求译 谢绝软件直译

2023-07-12 14:33:14
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Televisions quickly became popular after they were invented. Numerous people watch TV everyday. However, while the television makes rapid development, it brings harm to people"s health, especially for children and those adults who watch TV continuously for a long time. For them, TV is like drugs that they could hardly get rid of. Many people turn on their TV the first thing they go back home, and then grab a snack and keep changing the channels. When they turn the TV off, it"s usually time for bed. But if you read on, you"ll know it"s better to throw away your remoter and find some other ways to enjoy your rest time.

The most influenced is children, because their minds are not fully developed and therefore have a poor judgment. Some consider TV to be the best way to keep children silent. Many mums would put their children before the TV while they do household chores. Some children spend most of their day watching TV. A number of children"s programs claim that they offer things for children to learn, while ignoring the harm they do to them. Firstly, long-time watching TV would harm the health. Children and adolescents are in their physical development stage, but as they are weak in self control, they tend to hold onto the TV program they like. As the situation persists, it would not only lead to obesity, but also bring short sight for the vulnerable. Short sight that is resulted in by watching TV is more difficult to treat than ordinary short sights. Secondly, as children"s minds are not fully developed, their thinking are as blank as a piece of white paper and would fall culprit to the negative information shown on TV. Many children become transgressive after watching programs that have violence and pornography in. The harm becomes greater as they couldn"t figure out what is real and what is not. So, if your child is a TV fan, you need to correct him as soon as possible.

Next, many people spend most of their rest time watching TV. Although those programs are often interesting, they can"t take the place of social activities. If one indulges himself in TV programs, he may gain a short-lived joy but lose more in the long run. The more one watches TV, the less he communicates with people, and the poorer his social ability becomes. And then the malicious cycle sets in. As it persists, he may no longer know how to express himself and interact with people, and therefore lose his ability to socialize, or even worse, shut himself up. When one isolates himself from the society for a long time, he would in turn be "ignored" by the world. And he would suffer from solitude, depression, anxiety without the sense of achievement, which would impair his mental soundness.

TV has an adverse impact on people"s mind, at the same time harms people"s body. The objective of a TV program is to attractive people to watch it. If you submit to it by sticking yourself to the TV for a prolonged time without adequate workout, your chance to obesity and cervical spondylosis would greatly increase. Though there are fitness programs on TV, they don"t come in a good number. Many people sit in front of the TV for several hours without moving a bit. When they realize the importance of workout, they might already be too fat to pass their door frame.

大鱼炖火锅

After the television was invented ,it was quickly took attention to human beings,every day has a large number of people to watch the television program, but while television development so rapid, also gave people a certain degree of health hazards, particularly the child and these long time watched television"s adult, like television for them as difficult to shake off the drug. After many people go home, the first matter turns on the television, takes up between-meal snack, then does not stop replaces the channel, when they switch off the television machine-hour are also they sleep. If you looked at the following several contents, you will know that best will throw switches hands the remote control, will trade a way to enjoy the relaxation time. what is affected by the television is biggest is the child, is incomplete because of theirs mental growth, moreover the judgment is very bad. Some people thought that the television lets one which of best ways the child is peaceful down, many mothers before doing the housework will place the child the television, also will have the child daily majority of time to watch the television. Some child program declared that own program may let the child study the knowledge, but they have actually neglected the television to the child the harm. First, the long time looked that the television can create the health the harm, occupies physical growth period child and young people, because self-control ability is weak, program which comes across which the television station broadcasts to like, as soon as often looks like endlessly. Time steadily, not only insufficient will form obese because of the movement, the physique weak is also very easy to contract the nearsightedness, this kind by looked the television will cause the nearsightedness, will be more difficult than the common nearsightedness to treat. Next, child"s psychological growth is not perfect, child"s thought likely is a white paper, is polluted in the television each kind of complex information to be easier easily to affect they. Because many children watched included the violence and the pornographic content television program become have the crime tendency, they were unable to distinguish clearly are realistic and are hypothesized, the hazardous nature was bigger. Therefore if your child is the television fan, please promptly correct him.

The second spot, many people use for their majority of relaxation time to look the television, the television program are usually splendid, but it cannot substitute the public relations. If wallows excessively in the television, while obtains short joyful, possibly loses are more. If the long time wallows in television"s world, but is short with the human exchanges, the diffuse skills will drop, the television will look many, will exchange with the human are less, not and the human exchanges, did not know that with others said anything, how to say. The time possibly will not express itself, not to be able steadily to understand the interpersonal relationship, thus lost the diffuse skills, even fell into the vicious circle, sealed up gradually oneself. But because are at one kind of seal for a long time the social condition, also “will be neglected” by this world. , The human will be very continuously for a long time hence difficult to have the sense of achievement, will change lonely, constrains, anxious, harm psychologically healthy. the television also harms people"s body during influence psychology"s. Television program"s goal is attracts the people to look at it, if your really long time onlooking television, but not suitable movement, you contract obese, the cervical vertebra gets sick the probability greatly will increase, although the television will also have about the fitness program, but that will be minority after all, as soon as many people will sit in front of the television are several hours, moreover their buttocks do not want to move, when you will realize yourself should the movement, perhaps already fat was unable to pass oneself family"s front door.

左迁

After TV being invented prompt being fond of having got people, uncounted people of It both watch TV program every day, in but TV develops so prompt at the same time, having also brought about certain damage for people"s health , watch especially children the TV adult for a long time with those, be difficult to break away from like drug to their Er Yan TV. Be to open TV , take up between-meal nibbles last the first matter many person goes home , keep on changing a channel and then, when their switching is just that they go to bed time the TV set. If you have looked at several content of following, you are able to know remote control implement in throwing away hand best , change a way enjoying off-hours. And children maximal being is affected by TV, judgment dispatches very much because of their mentality growth is incomplete. Somebody thinks that TV is one of the best way let children calm down , many mothers may readjust oneself to a certain extent with the child before TV when making household duties , also has children most time of every day to be watching TV. Some children"s programs have claimed that self program can let a child study knowledge , they have ignored but the TV damage to children but. First, look at TV damage that can bring about keep healthy for a long time, the control ability is weaker in children and teen-agers during that period when the body develops because of oneself , come across television station playing"s self program being fond of, one sometimes seems endless. Time has been long , may form the fat son because motion is not worth not only, weaker body constitution shortsightedness very easy to contract , this led to by watching TV myopia, treat are even more difficult than general myopia. Secondly, the children"s psychology develops fairly faultily , children"s thought looks like white paper right away , various complicated information is easier to affect to them in easier to be contaminated TV. Many children is inclined to become having committing a crime because of having watched TV program containing force and eroticism content, that they have no way to distinguish is real and suppositional, harmfulness is bigger. If your child is, TV gets lost therefore, correct him in time please. But second point , many person all use most off-hours of self to be watching TV , TV program is generally all simply marvelous, its unable replacement social contact. If indulging in TV excessively, in gaining brief happy at the same time, possibility is lost more. The social contact ability only is capable to do go down if indulging in the TV world but stopping communicating with person for a long time, TV watches increasingly much, and person communicates with stopping being unable to communicate with person right away increasingly , right away increasingly, do not know what to say , why speak to others. Time has been grown may can not express self right away , can not understand human relations , thereby, lose the social contact ability , be caught in a vicious circle even, seal off self gradually. Since but self long range is in one kind of enclosed society state, have also been therefore likely by this world "neglection". If things continue this way, person is difficult to have feeling of success, lonely , repression , anxiety , damage mental health that can change. TV also endangers people"s body while affecting mentality. The TV program target it is attractive to go to look at it , you develop adiposity if you watch TV really for a long time but inadequacy moves, the probability falling ill only is capable to do a cervical vertebra increasing by greatly , that is few after all although TV also has the program about building body, many person is several as soon as sitting before TV even self buttocks not wanting to move and hour,entrance door thinking that maybe already fat having no way passes self family when you realize that self ought to move.

黑桃云

After the television was invented at a rapidly popular, numerous people every day watching television, but at such a rapid development of television, but also give people a certain degree of health hazards, particularly children and those who are long - time the adults watching television, like television for them as difficult to shake off the drug. After a lot of people go home the first thing is to turn on the TV, pick up the snacks, and then kept the replacement channels, when they also turn off TV when they go to bed. If you read some of the contents of the following, you will know the best hands to throw away the remote control, a way for the enjoyment of rest time.

The biggest impact has been on television are children, because of their mental development is not complete, and poor judgment. Some people think that television is to allow children the best way to quiet down, one to do a lot of mother at home when the children will be on television before, and every day children have the most of the time watching TV. Some children"s programs claim that their programs will allow children to learn knowledge, but they have ignored the dangers of television on children. First of all, watching TV a long time can cause damage in good health, physical development in children and adolescents during the self-control because of weak encounter their favorite television programs, often seems on the never-ending one. A long time, and not only due to lack of exercise and the formation of child obesity, less physical suffering from myopia easily, this from watching TV and the cause of myopia, more difficult than the treatment of myopia. Secondly, the psychological development of children is not healthy, children are thinking like a white, more easily in a variety of television POLLUTION complex information more easily affect them. Watched a lot of children because of violent and sexual content of television programs have become the criminally inclined, they can not distinguish between reality and virtual, the danger is even greater. Therefore, if your child is a TV fan, please promptly corrected him.

Secondly, a lot of people put to rest most of their time to look at television, television programs are usually very good, but it can not substitute for social life. If the over-indulgence in television, was short-lived happy at the same time, you may lose more. Long time television, if indulged in the world rather than communicate with people, social skills will drop, watch more television, and the less people communicate, the more people will not communicate, I do not know what other people say, how to say . Long time may not express themselves, understand interpersonal relationships, and thus the loss of social skills, or even turn into a vicious circle, put their own closed gradually. And because of their long-term status of a closed society, it will be the world"s "neglected" the. The long run, it is very difficult person has a sense of achievement, will become lonely, depressed, anxiety, mental health damage.

At the psychological impact of the television at the same time against the people"s health. Television programs that aim to attract people to see it, if you really watch tv a long time without proper exercise, you suffer from obesity, the risk of cervical disease will be greatly increased, even though there is also on the fitness television show, but after all, is one of the few, a lot of people at one sitting before the television is good for several hours, and even their own ass do not want to move, when you realize that they should exercise, the fat may be unable to have their own homes through the gate.

tt白

After the invention of television was quickly got people love every day, millions of people, but watch TV programs on TV such rapid development, but also give people"s health and brought harm, especially children and those long time watching TV, they like to get rid of drug that television. Many people go home after the first thing on the TV, picked up snacks, and constantly changing channels, when they turn off the TV set that they will sleep. If you see the following several contents, you will know the best throw in a remote controller, hand enjoy rest time.

Television is the greatest impact by children, because of their mental development is incomplete, and poor judgement. Some think TV is to let children quiet down one of the best ways to do housework, many mothers in children placed in the television when children also have every day, most of the time watching TV. Some of the children"s program says its programs can let children learn knowledge, but they have ignored the TV to the harm of children. First, long time watching television can cause damage to health of body development, in the period of children and adolescents due to the self-control ability weak, meet their favorite TV program, often a seems endless. For a long time, not only because of insufficient exercise FeiPanEr formed, physique weaker still very prone to nearsightedness, this caused by watching TV than general myopia harder, myopia. Secondly, children"s mental development is not perfect, children"s thinking like a blank sheet of paper, more easily polluted in various complex information television are more likely to affect them. Many children watched contain violence because of TV programs and pornography and become a crime, they cannot distinguish tendency and virtual reality, harmfulness is bigger. So if your child is a couch potato, please correct it.

Second, many people take their rest time to most TV programs on television, is usually very exciting, but it can not replace social. If too much addicted to TV, in short, may lose the happiness. If long time addicted to TV and the world to communicate with people, social skills will decline, watch TV, the more he less to communicate with people, not to communicate with people, don"t know and what others say, how to say. For a long time can not express oneself, can understand relationships, and loss of social skills, even in a vicious cycle, sealed gradually. But because of their long-term in a closed society, also will be the world "ignore". In the long run, it will have a sense of achievement, the lonely, depression, anxiety, damage to mental health.

Television in the mental body also endangering people"s. Goal is to attract people TV to see it, if you"re watching TV for a long time without proper motion, you have fat chance of cervical spondylosis, will be greatly increased, although TV program is also about the fitness, but it was still a few, a lot of people in front a TV would sit for hours, and even his buttocks all don"t want to move, when you realize that you should exercise, perhaps have fat cannot pass his door.

okok云

OT2

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输出过压保护电路的作用是:当输出电压超过设计值时,把输出电压限定在一安全值的范围内。当开关电源内部稳压环路出现故障或者由于用户操作不当引起输出过压现象时,过压保护电路进行保护以防止损坏后级用电设备。应用最为普遍的过压保护电路有如下几种:1、可控硅触发保护电路:如上图,当Uo1输出升高,稳压管(Z3)击穿导通,可控硅(SCR1)的控制端得到触发电压,因此可控硅导通。Uo2电压对地短路,过流保护电路或短路保护电路就会工作,停止整个电源电路的工作。当输出过压现象排除,可控硅的控制端触发电压通过R对地泄放,可控硅恢复断开状态。2、光电耦合保护电路:如上图,当Uo有过压现象时,稳压管击穿导通,经光耦(OT2)R6到地产生电流流过,光电耦合器的发光二极管发光,从而使光电耦合器的光敏三极管导通。Q1基极得电导通, 3842的③脚电降低,使IC关闭,停止整个电源的工作,Uo为零,周而复始,。3、输出限压保护电路:输出限压保护电路如下图,当输出电压升高,稳压管导通光耦导通,Q1基极有驱动电压而道通,UC3842③电压升高,输出降低,稳压管不导通,UC3842③电压降低,输出电压升高。周而复始,输出电压将稳定在一范围内(取决于稳压管的稳压值)。4、输出过压锁死电路:图A的工作原理是,当输出电压Uo升高,稳压管导通,光耦导通,Q2基极得电导通,由于Q2的导通Q1基极电压降低也导通,Vcc电压经R1、Q1、R2使Q2始终导通,UC3842③脚始终是高电平而停止工作。在图B中,UO升高U1③脚电压升高,①脚输出高电平,由于D1、R1的存在,U1①脚始终输出高电平Q1始终导通,UC3842①脚始终是低电平而停止工作。
2023-07-12 02:13:161

劳动法工时 一个月有多少个小时 求大学生!

如果你的底薪是1550,那么你每天的工资是72元,每小时是9元。算出你这个月一共上了多少小时,减去21.75*8然后用得出的这个数乘以2再加上1550就是你本月应该的到的工资。
2023-07-12 02:13:231

什么是化圆为方问题

为什么不能那?已知圆的面积开方,不就是正方形的边长了吗?
2023-07-12 02:13:3312

美国OT1是什么

OT1即第一次扭曲操
2023-07-12 02:14:093

盗墓笔记歌曲 开头是天真大喊一声张起灵 求歌名!

没有其他提示吗?
2023-07-12 02:14:164

手机QQ邮箱附件保存到微云

1.QQ邮箱的附件无法自动转存至微云。需要手动操作。具体操作步骤如下:2.打开QQ邮箱官网,登录个人QQ号码。3.在收件箱中选择需要保存附件的邮件。4.在附件上点击转存,选择转存到微云即可。如下图:
2023-07-12 02:15:162

比例温控表和比例阀怎么接线!是0到10V输入阀!

首先DC24V是温控表的直流输入电源,需要DC24V开关电源,然后把表的0-10V输出接入比例阀的0-10V输入即可。至于那个OUT1 ,OUT2只是温控表温度到与不到之间的一个开关信号,好像表上还有个接温度传感器的吧!
2023-07-12 02:15:362

java protected修饰符同包内可访问,继承该类的子类可以访问,不管该子类是否和父类在同一个包内是吗?

是的 子类 不再 同一个包 也可以访问的 。
2023-07-12 02:15:431

ELLA的DJ事件

DJ只是ELLA对那个男生的昵称,那个男生大他9岁,性格也不怎么合得来,ELLA是个大忙人,没有多余时间去谈恋爱,就只好分手了!前一阵子ELLA已经向媒体公开表示俩人以分手告终
2023-07-12 02:15:502

如何化圆为方?(面积)

两步解答就可以了
2023-07-12 02:16:132

为什么说用户电路中的过压保护是二级保护

输出过压保护电路的作用是:当输出电压超过设计值时,把输出电压限定在一安全值的范围内。当开关电源内部稳压环路出现故障或者由于用户操作不当引起输出过压现象时,过压保护电路进行保护以防止损坏后级用电设备。应用最为普遍的过压保护电路有如下几种:1、可控硅触发保护电路:如上图,当Uo1输出升高,稳压管(Z3)击穿导通,可控硅(SCR1)的控制端得到触发电压,因此可控硅导通。Uo2电压对地短路,过流保护电路或短路保护电路就会工作,停止整个电源电路的工作。当输出过压现象排除,可控硅的控制端触发电压通过R对地泄放,可控硅恢复断开状态。2、光电耦合保护电路:如上图,当Uo有过压现象时,稳压管击穿导通,经光耦(OT2)R6到地产生电流流过,光电耦合器的发光二极管发光,从而使光电耦合器的光敏三极管导通。Q1基极得电导通, 3842的③脚电降低,使IC关闭,停止整个电源的工作,Uo为零,周而复始,。3、输出限压保护电路:输出限压保护电路如下图,当输出电压升高,稳压管导通光耦导通,Q1基极有驱动电压而道通,UC3842③电压升高,输出降低,稳压管不导通,UC3842③电压降低,输出电压升高。周而复始,输出电压将稳定在一范围内(取决于稳压管的稳压值)。4、输出过压锁死电路:图A的工作原理是,当输出电压Uo升高,稳压管导通,光耦导通,Q2基极得电导通,由于Q2的导通Q1基极电压降低也导通,Vcc电压经R1、Q1、R2使Q2始终导通,UC3842③脚始终是高电平而停止工作。在图B中,UO升高U1③脚电压升高,①脚输出高电平,由于D1、R1的存在,U1①脚始终输出高电平Q1始终导通,UC3842①脚始终是低电平而停止工作。
2023-07-12 02:16:402

高中用新概念第几册比较好?

我觉得第三册比较好,对于你的综合能力会有很大提高!我看你的英语成绩也不差,如果能背第三册140肯定没问题(我们当年老师就是这样要求的)我们班的英语成绩特别好!
2023-07-12 02:16:471

珠海光宇电池有限公司要上晚班不,工作待遇怎么样。宿舍条件怎么样。工作时间。。。

你想得好,五天八个小时,做梦呢!
2023-07-12 02:16:574

求 飞出个未来大电影4:绿色狂想 百度网盘免费资源下载链接,谢谢

百度网盘链接:https://pan.baidu.com/s/1XIDhVpKzU2vAIL0Za_EXKw 提取码:4ot2 复制这段内容后打开百度网盘手机App,操作更方便哦
2023-07-12 02:17:061

变频器怎么样安装

变频器有主线路和控制线路,主线路是RST接三相电源线,LN接两相电源线,UVW接三相电机线,控制线路要看什么牌子变频器和什么功能
2023-07-12 02:17:152

仪表车床主轴通孔可以扩大吗?怎么改装

不能扩大,车床的刚性会降低,加工中会发震。
2023-07-12 02:17:242

电源里的电线接头叫什么名字

买不到的 每个厂家都不同的 你可以用点烙铁直接点上啊
2023-07-12 02:17:343

想了解一下在珠海伟创力工作的情况

我是外省的,今年23,想去珠海打工,需要带什么证件,办理哪些手续?伟创力现在还招普工吗,普工在里面都做些什么工作,没有工作经验的招不招。
2023-07-12 02:17:424

类比的数学类比

数学解题与数学发现一样,通常都是在通过类比、归纳等探测性方法进行探测的基础上,获得对有关问题的结论或解决方法的猜想,然后再设法证明或否定猜想,进而达到解决问题的目的.类比、归纳是获得猜想的两个重要的方法.运用类比法解决问题,其基本过程可用框图表示如下:可见,运用类比法的关键是寻找一个合适的类比对象.按寻找类比对象的角度不同,类比法常分为以下三个类型. 将三维空间的对象降到二维(或一维)空间中的对象,此种类比方法即为降维类比.【例2】以棱长为1的正四面体的各棱为直径作球,S是所作六个球的交集.证明S中没有一对点的距离大于1。【分析】考虑平面上的类比命题:“边长为1的正三角形,以各边为直径作圆,S‘是所作三个圆的交集”,通过探索S"的类似性质,以寻求本题的论证思路.如图,易知S‘包含于以正三角形重心为圆心,以为半径的圆内.因此S"内任意两点的距离不大于1以此方法即可获得解本题的思路。证明:如图,正四面体 ABCD中,M、N分别为BC、AD的中点,G为△BCD的中心,MN∩AG=O.显然O是正四面体ABCD的中心.易知OG=·AG=,并且可以推得以O为球心、OG为半径的球内任意两点间的距离不大于,其球O必包含S.现证明如下。根据对称性,不妨考察空间区域四面体OMCG.设P为四面体OMCG内任一点,且P不在球O内,现证P亦不在S内。若球O交OC于T点。△TON中,ON=,OT=,cos∠TON=cos(π-∠TOM)=-。由余弦定理:TN2=ON2+OT2+2ON·OT·=,∴TN=。又在 Rt△AGD中,N是AD的中点,∴GN=。由GN= NT=, OG=OT, ON=ON,得 △GON≌△TON。∴∠TON=∠GON,且均为钝角.于是显然在△GOC内,不属于球O的任何点P,均有∠PON>;∠TON,即有PN>TN=,P点在 N为球心,AD为直径的球外,P点不属于区域S.由此可见,球O包含六个球的交集S,即S中不存在两点,使其距离大于. 某些待解决的问题没有现成的类比物,但可通过观察,凭借结构上的相似性等寻找类比问题,然后可通过适当的代换,将原问题转化为类比问题来解决.【例3】任给7个实数xk(k=1,2,…,7).证明其中有两个数xi,xj,满足不等式0≤≤·【分析】若任给7个实数中有某两个相等,结论显然成立.若7个实数互不相等,则难以下手.但仔细观察可发现:与两角差的正切公式在结构上极为相似,故可选后者为类比物,并通过适当的代换将其转化为类比问题.作代换:xk=tanαk(k =l,2,…,7),证明必存在αi,αj,满足不等式0≤tan(αi-αj)≤·证明:令xk=tanαk(k =l,2,…,7),αk∈(-,),则原命题转化为:证明存在两个实数αi,αj∈(-,),满足0≤tan(αi-αj)≤·由抽屉原则知,αk中必有 4个在[0,)中或在(-,0)中,不妨设有4个在[0,)中.注意到tan0=0,tan=,而在[0,)内,tanx是增函数,故只需证明存在αi,αj,使0<;αi-αj <即可。为此将[0,)分成三个小区间:[0,]、(,]、(,)。又由抽屉原则知,4个αk中至少有2个比如αi,αj同属于某一区间,不妨设αi>;αj,则0≤αi-αj ≤,故0≤tan(αi-αj)≤·这样,与相应的xi=tanαi、xj=tanαj,便有0≤≤· 简化类比,就是将原命题类比到比原命题简单的类比命题,通过类比命题解决思路和方法的启发,寻求原命题的解决思路与方法.比如可先将多元问题类比为少元问题,高次问题类比到低次问题,普遍问题类比为特殊问题等.【例4】已知xi≥0(i=1,2,…,n),且xl+x2+…+xn=1。求证:1≤++…+≤.【分析】我们可先把它类比为一简单的类比题:“已知xl≥0,x2≥0,且xl+x2 =1,求证1≤+≤”.本类比题的证明思路为:∵2≤xl+x2=l,∴0≤2≤1,则1≤xl+x2+2≤2,即1≤(+)2≤2,∴1≤+≤.这一证明过程中用到了基本不等式和配方法.这正是要寻找的证明原命题的思路和方法.证明:由基本不等式有0≤2≤xi+xj,则0≤2≤(n-1)(xl+x2+…+xn)=n-1∴1≤xl+x2+…+xn +2≤n,即1≤(++…+)2≤n∴1≤++…+≤.所谓归纳,是指通过对特例的分析来引出普遍结论的一种推理形式.它由推理的前提和结论两部分构成:前提是若干已知的个别事实,是个别或特殊的判断、陈述,结论是从前提中通过推理而获得的猜想,是普遍性的陈述、判断.其思维模式是:设Mi(i=1,2,…,n)是要研究对象M的特例或子集,若Mi(i=1,2,…,n)具有性质P,则由此猜想M也可能具有性质P.如果=M,这时的归纳法称为完全归纳法.由于它穷尽了被研究对象的一切特例,因而结论是正确可靠的.完全归纳法可以作为论证的方法,它又称为枚举归纳法.如果是M的真子集,这时的归纳法称为不完全归纳法.由于不完全归纳法没有穷尽全部被研究的对象,得出的结论只能算猜想,结论的正确与否有待进一步证明或举反例.本节主要介绍如何运用不完全归纳法获得猜想,对于完全归纳法,将在以后结合有关内容(如分类法)进行讲解.【例5】证明:任何面积等于1的凸四边形的周长及两条对角线的长度之和不小于4十.【分析】四边形的周长和对角线的长度和混在一起令人棘手,我们可以从特例考察起:先考虑面积为1的正方形,其周长恰为4,对角钱之和为2即.其次考察面积为1的菱形,若两对角线长记为l1、l2,那么菱形面积S=l1·l2,知l1+ l2≥2=2=,菱形周长:l=4≥2=4。由此,可以猜想:对一般的凸四边形也可将其周长和对角线长度和分开考虑.【证明】设ABCD为任意一个面积为1的凸四边形,其有关线段及角标如图.则SABCD= (eg+gf+fh+he)sinα≤ (e+f)(g+h)≤,∴e+f+g+h≥2,即对角线长度之和不小于.∴a+b+c+d≥4,即周长不小于4.综上所述,结论得证,
2023-07-12 02:17:521

XD、OT2是什么意思

(2).XD作为网络用语,也可以解释为:兄弟。例如:XD们,给介绍几款好玩的游戏。Orz(OT2)Orz,又称作失意体前屈,是一种源自于日本的网路象形文字(或心情图示),并且在2004年时在日本、台湾、大陆与香港俨然已经成为一种新兴的网路文化。失意体前屈,原本指的是网路上流行的表情符号:_| ̄|○。看起来像是一个人跪倒在地上,低着头,一副“天啊,你为何这样对我”的动作,虽然简单却很传神。在初期的时候,并没有人对这个符号起个名字,“失意体前屈”也是后来才出现的,据说是某个餐厅的座垫上绣着这五个字,至于再之前又是谁想到的,就不可考了。后来,又有人发现,用简单的三个英文字也可以表现这个动作,于是Orz就开始流行了。后来,更有Orz的日志软体、日志网站!这种文字可以写作Orz、oro、Or2、On_、Otz、OTL、sto、Jto、○| ̄|_等,但其中以“Orz”最为常用;并有混合型,表示无可奈何的“囧rz”。原始用意带有“悔恨”、“悲愤”、“无力回天”等的含意,最明显的用法就是在于被甩(失恋)的时候。
2023-07-12 02:18:221

求Simply Red唱的Say You Love Me的歌词翻译

2023-07-12 02:18:303

js怎么获取带参函数的返回值

直接用变量存储呀。比如你个函数 fun var back_val=fun(参数1,参数2)
2023-07-12 02:18:372

使命召唤7里有中国军队?

没有
2023-07-12 02:18:4812

SQL 两次分组求百分比

select order_type,is_olduser,sum(counts)/c2 from order_todaylett join (select order_type ot,sum(counts) c2 from group by order_today) ot2 on ot2.ot=order_today.order_typegroup by order_type,is_olduser,c2
2023-07-12 02:20:191

使命召唤7黑色行动中国和美国怎么了.

使命7里没中国
2023-07-12 02:20:295

在珠海光宇做QC,电池厂好还是电子厂好?

光宇最垃圾,出尔反尔,说不扣社保的,又扣了,根本就没多少钱,这一扣又少了几百块,光宇电池太难做了,根本就赚不到什么钱,
2023-07-12 02:21:264

辞めてやるよ歌い手なんか/不要当了吧歌手什么的 伴奏

希望它对你有用望采纳!!
2023-07-12 02:21:321

瀖气丹是用来治疗什么?

茅台带个镇,买时需谨慎。泸州没老窖,马上往回绕。汾酒加集团,基本要玩完。西凤不带酒,必须躲着走。五粮春醇液,其余都是孽。洋河海天梦,其他不要碰。古井不带贡,喝了浑身痛。剑南没有春,别问真不真。酒鬼变湘泉,绝对不值钱。习酒写简体,直接瞧不起。长毛非老酒,瓶子刷酱油。大厂买嫡系,口诀要牢记。
2023-07-12 02:21:438

关于防战的问题

高端防战应该有两套装备一是血装 一是仇恨装首先命中应该够127 也就是8命中,保证技能无MISS(如果是LM的话的德国人只要7命中)1.关于仇恨,会在下面解释如何保持,但是前提是技能无MISS,同等级装备除非队友是傻的,比如开着正义之怒上手开翅膀的CJQ,不然不可能OT2。关于装备,我不太记装备名字的,这样说好了,耐装全12耐,仇恨装备红蓝孔的5力7耐,黄孔敏捷命中。另外,仇恨装堆格挡值,因为战士高仇恨技能盾牌猛击伤害和格挡值有关。BT祖母的1.4速度剑(提示英勇原理:占用武器CD,就是说你武器越快,打出去的英勇越多),铁臂头,T6裤子,是不错的仇恨装。3.防战技能:英勇打击(小FB群拉用顺P),毁灭打击,盾猛,复仇,警戒,雷霆,戳志,狂暴之怒,血性狂暴,操讽以及群操(提示:操讽是复制当前第一仇恨,群操不是),盾击,吼血,鲁莽。。。 下面只讲拉BOSS仇恨建立:警戒给团队装备明显比别人好一大截的DPS,如果都差不多,给猎人或术士,如果有两个防战,互给,如果BOSS战中间有人仇恨很高,一直和你非常接近,中间给他警戒 站位猎人误导,血性狂暴,狂暴之怒,狂暴姿态,鲁莽(你按这些技能的时候多半开BOSS了,它向你跑来),回防御姿态,开盾挡,起手盾猛,复仇,点亮英勇,开始毁灭一直刷,然后盾猛复仇一亮就用,英勇打击全程不熄,没有奥法,就不踩雷霆,同时注意补吼血,戳志BOSS战可以不吼。盾挡好了,等盾猛也好了,再盾挡盾猛,然后和前面一样。有CD的技能没亮的时候,一直毁灭刷免费盾猛。再一次提醒,英勇全程点亮,意思就是说不要有白字伤害。4.天赋优先推荐5、5、51,冲榜天赋对你暂时没有参考价值,具体在AG随便找几个高端战士看看就OK5.不用切,战神点出来。除了开BOSS,全程防御姿态就可以了。如果仇恨高出第二一大截,斩杀阶段可以切战斗斩杀玩玩
2023-07-12 02:22:124

如图,三角形OAB中,OA=OB=10

1 可以证明三角形AOP和BOP是相同大小的三角形(太久了,专用的名词不记得了),因为角AOP=AOB+BOP=80+角BOP=角BOP+角POP"=BOP",而AO=BO,OP=OP",所以AP=BP"2 TO=6,AO=10,所以AT=8,AO/TO=TO/TR,R为垂足,T到AO的距离可以求出是3.63 AOQ的面积为1/2AO*高,所以当Q距离AO的垂距最大时,AOQ面积最大,此时QO垂直于AO,即角AOQ=90度,因此角BOQ=AOQ+BOA=170,或者BOQ=AOQ-BOA=10
2023-07-12 02:22:221

物理思考题~

10.86792453摄氏度
2023-07-12 02:22:293