考研习题练习
| 考研每日一练（2019/7/31） |
| 第1题：不符合原发性高血压眼底改变的是
A．视网膜出血 B．眼底静脉曲张 C．视乳头水肿 D．肿瘤结节形成 E．血管迂曲、反光性增强 |
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| 第2题： A．valuable B．useful C．economical D．practical |
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| 第3题：下列关于《凡尔赛和约》的说法，全部错误的是()。 ①《凡尔赛和约》中不许德国设防区是莱茵河西岸50公里以内区域 ②《凡尔赛和约》中，战胜国处置德国的全部海外殖民地的方式是“托管制” ③和约有关德国疆界问题，把原属波兰的领土基本上归还波兰 ④德国承认并尊重奥地利的独立、禁止德国实行义务兵役制 ⑤《凡尔赛和约》中对德国的处罚也做了规定，德国应该对协约国赔款并由英、法、美、日决定德国赔款的数额 ⑥德国海外殖民地问题、阿尔萨斯和洛林的归属问题、德国的兵役制问题，《凡尔赛和约》都做了最后规定 A．①②⑤ B、②③④⑥ C、①③④ D、①④⑤⑥ |
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第4题： |
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| 第5题：设A为m×n矩阵，且rA=m ＜n，则下列结论正确的是( )
A、A的任意m阶子式都不等于零 B．A的任意m个列向量线性无关 C．方程组AX=b一定有无数个解 D．矩阵A经过初等行变换化为[*] |
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| 第6题：偏外苔(舌尖为外)多是
A．邪气入里未深，胃气却先伤 B．表邪虽减，胃滞依然 C．肾阳不能上蒸 D．肾阴不能上濡 E．阴精气血皆伤 |
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| 第7题：During the past generation, theAmerican middle-class family that once could count on hard work and fair pay to keep itself financially secure has been transformed by economic risk and new realities. Now a pink slip, a bad diagnosis, or a disappearing spouse can reduce a family from solidly middle class to newly poor in a few months. In just one generation, millions of mothers have gone to work, transforming basic family economics. Scholars, policymakers, and critics of all stripes have debated the social implications of these changes, but few have looked at the side effect: family risk has risen as well. Today’s families have budgeted to the limits of their new two-paycheck status.As a result, they have lost the parachute they once has in times of financial setback-- a back-up earner (usually Mom) who could go into the workforce if the primary earner got laid off or fell sick. This "added-worker effect" could support the safety net offered by unemployment insurance or disability insurance to help families weather bad times.But today, a disruption to family fortunes can no longer be made up with extra income from an otherwise-stay-at-home partner. During the same period, families have been asked to absorb much more risk in their retirement income. Steelworkers, airline employees, and now those in the auto industry are joining millions of families who must worry about interest rates, stock market fluctuation, and the harsh reality that they may outlive their retirement money. For much of the past year, PresidentBush campaigned to move Social Security to a savings-account model, with retirees trading much or all of their guaranteed payments for payments depending on investment returns. For younger families, the picture is not any better.Both the absolute cost of healthcare and the share of it borne by families have risen--and newly fashionable health-savings plans are spreading from legislative halls to Wal-Mart workers, with much higher deductibles and a large new dose of investment risk for families’ future healthcare.Even demographics are working against the middle class family, as the odds of having a weak elderly parent-- and all he attendant need for physical and financial assistance -- have jumped eightfold in just one generation. From the middle-class family perspective, much of this, understandably, looks far less like an opportunity to exercise more financial responsibility, and a good deal more like a frightening acceleration of the wholesale shift of financial risk onto their already overburdened shoulders. The financial fallout has begun, and the political fallout may not be far behinD、 Which of the following is the best title for this text A、The MiddleClass on theAlert. B、The MiddleClass on theCliff. C、The MiddleClass inConflict. D、The MiddleClass in Ruins. |
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第8题：某时刻进程的资源使用情况见表2-21。此时的安全序列是()。
B、P1，P3，P2，P4 C．P1，P4，P3，P2 D、不存在 | |||||||||||||||||||||||||||||||||||||||||||||||||||
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| 第9题：下列选项中，符合Craves病眼征分级标准4级的是
A．有症状和体征，软组织受累 B．突眼度＜18mm C．突眼度＞18mm D．角膜受累 E．有视力丧失 |
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| 第10题：{{B}}Text 4{{/B}} Inevitably, as the week rolled on, details of the affair rolled out. The other party was re2 ported to beDebra Peabody, who is unmarried and has worked forBoeing for 25 years. The couple were said to have first got together atBoeing’s annual retreat at PalmDesert,California in January.After that much of the affair must have been conducted from a distance: Mr. Stonecipher’s office is atBoeing’s headquarters inChicago; Ms Peabody runs the firm’s government-relations office in Washington,DC、They exchanged e-mails, it seems, as office lovers tend to do these days, and therein probably lay Mr Stonecipher’s downfall Lewis Platt,Boeing’s chairman, said that Mr Stonecipher broke a company rule that says: "Employees will not engage in conduct or activity that may raise questions as to the company’s honesty, impartiality, reputation or otherwise cause embarrassment to the company." Having an affair with a fellow employee is not, of itself, against company rules; causing embarrassment toBoeing is. It seems that the board judged that the contents of the lovers’ e-mails would have been bad forBoeing had they been made publiC、Gone are the days when a board considered such matters none of its business, asCitibank’s did in 1991 when its boss, John Reed, became the talk of Wail Street for having an affair with a stewardess onCiti’s corporate jet. AtBoeing, a whistleblower is said to have forwarded the messages to Mr Platt. In general, e-mails are encrypted and not accessible to anyone who does not know the sender’s passworD、But many firms install software designed to search electronic communications for key words such as, "sex" and "CEO".A、study last year of 840American firms by theAmerican ManagementAssociation found that 60% of them check external e-mails (incoming and outgoing), while 27% scrutinize internal messages between employees. Sweet nothings whispered by the water cooler may travel less far these days than electronic billets doux. Boeing is particularly sensitive to embarrassment at the moment. Mr. Stonecipher was recalled from retirement only 15 months ago, after the company’s previous boss, PhilCondit, and its chief financial officer, Michael Sears, had left in the wake of a scandal involving an illegal job offer to a Pentagon official. Mr Stonecipher, a crusty former number two atBoeing, was brought back specifically to raise the company’s ethical standards and to help it be seen in its main ( and affectedly puritanical) market, in Washington,DC, as squeaky clean. Verbally explicit extra-marital affairs are inconsistent with such a strategy, it seems, though they are not yet enough to bring down future kings ofEnglanD、 In corporate life, such affairs are hardly unusual. One survey found that one-quarter of all long-term relationships start at work; another found that over 40% of executives say they have been involved in an affair with a colleague, and that in haft of these cases one or other party was married at the time. Many a boss has married his assistant and lived happily ever after.Boeing apparently used to accept this: Mr.Condit’s fourth wife was a colleague before they marrieD、 |