MBA习题练习
| MBA每日一练（2019/11/13） |
| 第1题：The recent boom in technological advances, formation of new businesses, and personal (1) is the third, and most dramatic, such wave (2) by the computer industry in the last twenty-five years. The first wave (3) tangible products—"hardware," as (4) the computer programs that (5) software. In the 1960s and 1970s companies in the SantaClara Valley, between San Jose and San Francisco, produced silicon memory chips for computers— (6) the name Silicon Valley. Then they produced silicon logic chips, (7) direct a computer’s operation. Then many produced computers (8) . The great (9) from the hardware era include those of the Hewlett and Packard families, of Hewlett-Packard, which started (10) money in the presilicon era, with scientific instruments. The Packard Foundation, with (11) of ＄10 billion, recently (12) the Ford Foundation as the nation’s third-largest private foundation The (13) hardware company of the 1990s is Intel, (14) Pentium and other processing chips are used in most personal computers (15) the Macintosh. The second (16) of wealth creation involved software—"application" software that people use for work or recreation, like word-processing programs or computer games, and "systems" software used to (17) businesses or, very often, computer networks (18) . The difference between software and hardware provides a classic illustration of (19) economists mean by "increasing returns to scale."Because the cost of producing additional units of software—the "marginal cost"- is extremely low, (20) you become the market leader in a field, your profits grow astronomically. A、whatB、whomC、which D、that |
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| 第2题：The invention of both labor-saving tools and tools of intelligence is rarely accidental. Instead, it is usually the product of human need; (21) is truly the mother of invention. People usually devise tools to (22) for natural deficiencies. For example, people invented weapons to defend (23) from physically superior (24) .But (25) is only one incentive for inventions. People also invent (26) tools to (27) certain established tasks more efficiently. For instance, people developed the bow and arrow from the (28) spear or javelin in order to shoot (29) and strike with greater strength. (30) civilizations developed, greater work efficiency came to be demanded, and (31) tools became more (32) .A、tool would (33) a function until it proved (34) in meeting human needs, at which point an improvement would be made. One impetus for invention has always been the (35) for speed and high-quality results--provided they are achieved (36) reasonable costs. Stone pebbles were sufficient to account for small quantities of possessions, (37) they were not efficient enough for performing sophisticated mathematics. However, beads arranged systematically evolved into the abacus. The (38) of this tool can be (39) to the development of commerce in theEast around 3000B、C、, and the abacus is known (40) by the ancientBabylonians,Egyptians,Chinese, etC、 A、to be usedB、to have usedC、to have been usedD、to use |
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| 第3题：为了胎儿的健康，孕妇一定要保持身体健康。为了保持身体健康，她必须摄取足量的钙质，同时，为了摄取到足量的钙质，她必须喝牛奶。 如果上述断定为真，则以下哪项必定是真的 A、如果孕妇不喝牛奶，胎儿就会发育不好。 B、摄取了足量的钙质，孕妇就会身体健康。 C、孕妇喝牛奶，她就会身体健康。 D、孕妇喝牛奶，胎儿就会发育良好。 E、孕妇不喝牛奶，胎儿也可以发育良好。 |
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| 第4题：博雅公司的总裁发现，除非从内部对公司进行改革，否则公司将面临困境。而要对公司进行改革，就必须裁减公司富余的员工。而要裁减员工，国家必须有相应的事业保险制度。所幸的是博雅公司所在的国家，其事业保险制度是健全的。 如果上述断定真，那么以下哪项一定是真的 Ⅰ．博雅公司裁减了员工。 Ⅱ．博雅公司进行了改革。 Ⅲ．博雅公司摆脱了困境。 A．仅仅Ⅰ。 B、仅仅Ⅱ和Ⅲ。 C．仅仅Ⅰ和Ⅱ。 D、Ⅰ、Ⅱ和Ⅲ。 E．Ⅰ、Ⅱ和Ⅲ都不一定为真。 |
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| 第5题： 在产品检验中，误检包括两种情况：一是把不合格产品定为合格；二是把合格产品定为不合格。有甲乙两个产品检验系统，它们依据的是不同的原理，但共同之处在于：第一，它们都能检测出所有送检的不合格产品；第二，都有恰好3%的误检率；第三，不存在一个产品，会被两个系统都误检。现在把这两个系统合并为一个系统，使得被该系统测定为不合格的产品，包括且只包括两个系统分别工作时都测定的不合格产品。因此，可以得出结论：这样的产品检验系统的误检率为零。 以下哪项最为恰当地评价了上述推理 A．上述推理是必然性的，即如果前提真，那么结论一定真。 B．上述推理是很强的，但不是必然性的。即如果前提真，则为结论提供了很强的证据，但附加的信息仍可能削弱该论证。 C．上述推理很弱，前提尽管与结论相关，但最多只为结论提供了不充分的根据。 D．上述推理的前提中包含矛盾。 E．上述推理不能成立，因为它把某事件发生的必要条件的根据，当做充分条件的根据。 |
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第6题：s，t分别满足19s2+99s+1=0及t2+99t+19=0，且st≠1，则 ()。A、-5 B、-3 C、0 D、3E、5 |
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| 第7题：Advancing age means losing your hair, your waistline and your memory, rightDanaDenis is just 40 years old, but (21) she’s worried about what she calls "my rolling mental blackouts." "I try to remember something and I just blank out," she says. You may (22) about these lapses, calling them "senior moments" or blaming "earlyAlzheimer’s(老年痴呆症)." Is it an inescapable fact that the older you get, the (23) you remember Well, sort of.But as time goes by, we tend to blame age (24) problems that are not necessarily age-relateD、 "When a teenager can’t find her keys, she thinks it’s because she’s distracted or disorganized," says Paul Gold " A、70-year-old blames her (25) ." In fact, the 70-year-old may have been (26) things for decades. In healthy people, memory doesn’t worsen as (27) as many of us think. "As we (28) , the memory mechanism isn’t (29) ," says psychologist FergusCraik. "It’s just inefficient." The brain’s processing (30) slows down over the years, though no one knows exactly (31) Recent research suggests that nerve cells lose efficiency and (32) there’s less activity in the brain.But, cautionsBarry Gordon, "It’s not clear that less activity is (33) . A、beginning athlete is winded(气喘吁吁) more easily than a (34) athlete. In the same way, (35) the brain gets more skilled at a task, it expends less energy on it. There are (36) you can take to compensate for normal slippage in your memory gears, though it (37) effort. Margaret Sewell says: "We’re a quick-fix culture, but you have to (38) to keep your brain (39) shape. It’s like having a good body. You can’t go to the gym once a year (40) expect to stay in top form.\ A、stages B、stepsC、advantagesD、purposes |
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| 第8题： 某公司上年末资产负债率为700k，流动比率为1.3，本年初该公司偿还一笔银行短期贷款，这一经济业务使( )。 A．资产负债率上升，流动比率下降 B．资产负债率下降，流动比率上升 C．资产负债和动比率均下降 D．资产负债和动比率均上升 |
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| 第9题：一户人家养了四只猫，其中一只猫偷吃了他家里的鱼。主人对它们进行审问，只有一只猫说了真话。这四只猫的回答如下： 甲：“乙是偷鱼贼。” 乙：“丙是偷鱼贼。” 丙：“甲或者乙是偷鱼贼。” 丁：“乙或者丙是偷鱼贼。” 根据以上陈述，请确定以下哪项陈述为假 A、甲不是偷鱼贼。 B、乙不是偷鱼贼。 C、丙说真话。 D、丁说假话。 E、乙说假话。 |
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| 第10题： Text 4 In the atmosphere, carbon dioxide acts rather like a one-way mirror—the glass in the roof of a greenhouse which allows the sun’s rays to enter but prevents the heat from escaping. According to a weather expert’s prediction, the atmosphere will be 3℃ warmer in the year 2050 than it is today, if man continues to burn fuels at the present rate. If this warming up took place, the ice caps in the poles would begin to melt, thus raising sea level several metes and severely flooding coastal cities.Also, the increase in atmospheric temperature would lead to great changes in the climate of the northern hemisphere, possibly resulting in an alteration of the earth’s chief food-growing zones. In the past, concern about a man-made warming of the earth has concentrated on theArctic because theAntarctic is much colder and has a much thicker ice sheet.But the weather experts are now paying more attention to WestAntarctic, which may be affected by only a few degrees of warming: in other words, by a warming on the scale that will possibly take place in the next fifty years from the burning of fuels. Satellite pictures show that large areas ofAntarctic ice are already disappearing. The evidence available suggests that a warming has taken place. This fits the theory that carbon dioxide warms the earth. However, most of the fuel is burnt in the northern hemisphere, where temperatures seem to be failing. Scientists conclude, therefore, that up to now natural influences on the weather have exceeded those caused by man. The question is: Which natural cause has most effect on the weather One possibility is the variable behavior of the sun.Astronomers at one research station have studied the hot spots and "cold" spots (that is, the relatively less hot spots) on the sun.As the sun rotates, every 27.5 days, it presents hotter or "colder" faces to the earth, and different aspects to different parts of the earth. This seems to have a considerable effect on the distribution of the earth’s atmospheric pressure, and consequently on wind circulation. The sun is also variable over a long term: its heat output goes up and down in cycles, the latest trend being downwarD、 Scientists are now finding mutual relations between models of solar-weather interactions and the actual climate over many thousands of years, including the last IceAge. The problem is that the models are predicting that the world should be entering a new IceAge and it is not. One way of solving this theoretical difficulty is to assume a delay of thousands of years while the solar effects overcome the inertia of the earth’s climate. If this is right, the warming effect of carbon dioxide might thus be serving as a useful counter-balance to the sun’s diminishing heat. The article was written to explain______.A．the greenhouse effect B．the solar effects on the earth C．the models of solar-weather interactions D．the causes affecting weather |
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