考研习题练习

考研每日一练（2019/9/5）
第1题： 一台安装了签名识别软件的电脑——这种软件仅限于那些签名在文档中的人进入计算机——不仅通过分析签名的形状，而且通过分析诸如笔尖压力和签名速度等特征来识别某人的签名。即使是最机灵的伪造者也不能复制该程序分析的所有特征。下面哪个结论在逻辑上可以从上文得到
A．记录和分析某个签名需花费的时间使这种软件的日常使用变得不现实
B．安装有这种软件的计算机很快就会被大多数银行装备
C．没有人可以仅通过伪造签名的技巧而进入安装了这种软件的计算机
D．签名识别软件花费了很多年来进行发展和加以完善
【单选题】：      

第2题：半夏泻心汤与小柴胡汤两方均含有的药物是
A．人参、黄芩、半夏、干姜、甘草
B．人参、生姜、半夏、甘草、大枣
C．半夏、黄芩、人参、甘草、大枣
D．柴胡、人参、黄芩、生姜、甘草
E．黄连、黄芩、半夏、甘草、大枣
【单选题】：        

第3题：已知4元非齐次线性方程组Ax=b的系数矩阵A的秩为3，又η1，η2，η3是它的3个解向量，其中η1+η2=(1，1，0，2)T，η2+η3=(1，0，1，3)T，试求Ax=b的通解．
【分析题】：

第4题：Being a man has always been dangerous. There are about 105 males born for every 100 females, but this ratio drops to near balance at the age of maturity, and among 70-year-old there are twice as many women as men.But the great universal of male mortality is being changeD、Now, boy babies survive almost as well as girls do. This means that, for the first time, there will be an excess of boys in those crucial years when they are searching for a mate. More important, another chance for natural selection has been removeD、Fifty years ago, the chance of a baby (particularly a boy baby) surviving depended on its weight.
A、kilogram too light or too heavy meant almost certain death. Today it makes almost no difference. Since much of the variation is due to genes, one more agent of evolution has gone.　　There is another way to commit evolutionary suicide: stay alive, but have fewer children. Few people are as fertile as in the past.Except in some religious communities, very few women have 15 children. Nowadays the number of births, like the age of death, has become average. Most of us have roughly the same number of offspring.Again, differences between people and the opportunity for natural selection to take advantage of it have diminisheD、India shows what is happening. The country offers wealth for a few in the great cities and poverty for the remaining tribal peoples. The grand mediocrity of today--everyone being the same in survival and number of offspring--means that natural selection has lost 80% of its power in upper-middle-class India compared to the tribes.　　For us, this means that evolution is over; the biological Utopia has arriveD、Strangely, it has involved little physical change. No other species fills so many places in nature.But in the past 100,000 years--even the past 100 years--our lives have been transformed but our bodies have not. We did not evolve, because machines and society did it for us.Darwin had a phrase to describe those ignorant of evolution: they" look at an organic being as a savage looks at a ship, as at something wholly beyond his comprehension. "No doubt we will remember a 20th century way of life beyond comprehension for its ugliness.But however amazed our descendants may be at how far from Utopia we were, they will look just like us.What used to be the danger in being a man according to the first paragraph
A、
A、lack of mates.
B．
A、fierce competition.
C．
A、lower survival rate.
D．
A、defective gene.
【单选题】：      

第5题：如何理解实践标准、生产力标准、“三个有利于”标准和“三个代表”思想之间的关系。
【分析题】：

第6题： 依次在下列各句横线处填入词语，恰当的一组是______。
①冷战后，美国不断以各种名义动用军事力量干涉别国事务，______成了世界警察。
②1998年，中国经济受亚洲金融危机及国内特大洪涝灾害的双重影响，形势十分______。
③书是______人类智慧大门的金钥匙。
④10万元年薪聘教授，148个特聘教授职位______。
A．居然 严峻 启迪 虚席以待
B．俨然 严峻 开启 虚席以待
C．居然 严厉 开启 虚左以待
D．俨然 严厉 启迪 虚左以待
【单选题】：      

"Target apologizes for any discomfort," said a spokesman for the discount chain. "that may have been caused by the baseball caps and shorts carrying the insignia ’88’ ." He explained that it was not the company’s intent to promote hate.
Since when does 88 mean "hate" It turns out that some neoNazis have discovered that the eighth letter of the alphabet is "h", and to them the number 88 is an oh-so- secret ceded symbol for "heil Hitler" .
TheBoston Herald recalled the days of dot-and-dash telegraphy, with its two-digit codes for common phrases, and observed that "onCB、and ham radio, and at the bottom of an odd e-mail, you still run across ’88’—’love and kisses’, which no gallant will dare use anymore to pique the interest of the YLs ( young ladies) for fear they’ll think he is a bug-eyed, swastika--tattooed nutcake"
Fans ofChet Gould’s "Dick Tracy" strip of the 1950’s will remember a piano-playing cartoon character with the musical name "88 Keys", played by Mandy Patinkin in the 1990 movie version. It comes from the number of keys on a piano keyboard, and its symbol can be the opposite of hatred: "Some of those 88 keys are white, and some black," notes Larry Horn of Yale University, "all playing together in peaceful harmony-and each set pretty boring on its own. Makes you wonder."
This latest superstition imposed on a number, and its panicky effect on merchants, is nothing new. It’s a variant of 311, throe references to the 11th letter, k, for the Ku Klux Klan. (Manufacturers who may have inadvertently turned out baseball caps with that number on it will now turn white as a sheet.)
Before that, 666 was a hot number for the nervous. In the New Testament’s Revelation 13: 9-18, theApostle John recalls a vision of a boast that was an opponent ofChrist: "Count the number of the beast," goes the King James Version, "for it is the number of a man; and his number is six hundred threescore and six."
Extrapolating this into a name is an example of gematria, an ancient numbers game that assigns each letter of the alphabet a numerical value. Some scholars point out that the verse characterizes, but does not name, the beast-which aren’t Satan.
Numbers are not letters. Hate groups and concerned cabals do not own the numbers, which can be used to stand for anything. So wear 88 all you like, and if you have nightmares about 666, as soda jerks used to say I’m 86 on the mail.
第7题：{{B}}Text 4{{/B}}
What does "the musical name ’88 Keys’" ( Line 2, ParA、4) implyA、piano-playing cartoon character.
B．A、1990 movie version.
C．Peaceful harmony.
D．HatreD、
【单选题】：      
第8题：设
其中f(x)具有连续导数，且f(0)=0．
(Ⅰ) 确定c的值，使F(x)连续；(Ⅱ) 在(Ⅰ)的结果下，问F’(x)是否连续
【分析题】：

第9题：TheAmerican screen has long been a smoky place, at least since 1942’s Now, Voyager, in whichBetteDavis and Paul Henreid showed how to make and seal a romantic deal over a pair of cigarettes that were smoldering as much as the stars. Today cigarettes are more common on screen than at any other time since midcentury: 75% of all Hollywood films—including 36% of those rated G or PG—show tobacco use, according to a 2006 survey by the University ofCalifornia, San Francisco.
Audiences, especially kids, are taking notice. Two recent studies, published in Lancet and Pediatrics, have found that among children as young as 10, those exposed to the most screen smoking are up to 2.7 times as likely as others to pick up the habit. Worse, it’s the ones from nonsmoking homes who are hit the hardest. Now the Harvard School of Public Health (HSPH)—the folks behind the designated-driver campaign—are pushing to get the smokes off the screen. "Some movies show kids up to 14 incidents of smoking per hour," saysBarryBloom, HSPH’s dean. "We’re in the business of preventing disease, and cigarettes are the No. 1 preventable cause."
Harvard long believed that getting cigarettes out of movies could have as powerful an effect, but it wouldn’t be easy.Cigarette makers had a history of striking product-placement deals with Hollywood, and while the 1998 tobacco settlement prevents that, nothing stops directors from incorporating smoking into scenes on their own. In 1999 Harvard began holding one-on-one meetings with studio execs trying to change that, and last year the Motion PictureAssociation ofAmerica flung the door open, invitingBloom to make a presentation in February to all the studios. Harvard’s advice was direct: Get the butts entirely out, or at least make smoking unappealing.

A、few films provide a glimpse of what a no-smoking or low-smoking Hollywood would be like. Producer LindsayDoran, who once helped persuade director John Hughes to keep FerrisBueller smoke-free in the 1980s hit, wanted to de the same for the leads of her 2006 movie Stranger Than Fiction. When a writer convinced her that the character played byEmma Thompson had to smoke,Doran relented, but from the way Thompson hacks her way through the film and snuffs out her cigarettes in a palmful of spit, it’s clear the glamour’s gone.And remember all the smoking in TheDevil Wears Prada No That’s because the producers of that film kept it out entirely—even in a story that travels from the US fashion world to Paris, two of the most tobacco-happy places on earth. "No one smoked in that movie," saysDoran, "and no one noticeD、"
Such movies are hardly the rule, but the pressure is growing. Like smokers, studios may conclude that quitting the habit is not just a lot healthier but also a lot smarter.
Why the author mentioned Now, Voyager
A、Smoke on screen can make romance.

B、To showAmerican screen was full of cigarette smoke.

C、To explain why cigarettes are easier to get than past.
D．The romantic Hollywood movie is a typical example of smoky screen.
【单选题】：      

第10题：在“摭陶氏之乖违，辨俗用之纰紊”中，“摭”的意义是：
A．通“庶”
B．摘取
C．批判
D．遮掩
E．指责
【单选题】：        

 

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