His health is _________. A. as poor, if
Hishealthis（）A.aspoor,ifnotpoorerthan,hissisterB.poorashissistersifnotpoorerC.aspooras,ifnotpoorerthan,hissister‘sD.aspoor,ifnotpoorerthanhissister‘s“闪婚”是指男女双方恋爱不到半年就结婚。某研究所对H市法院审理的所有离婚案件做了
“闪婚”是指男女双方恋爱不到半年就结婚。某研究所对H市法院审理的所有离婚案件做了调查。结果显示，闪婚夫妻3年内起诉离婚的比例远远高于非闪婚夫妻。该研究机构据此认为，闪婚是目前夫妻离婚的一个重要原因。
下列哪项如果为真，最能削弱以上论证
A．调查发现，离婚最快的夫妻往往不是闪婚夫妻。
B．到该H市民政部门办理的协议离婚案件占该市离婚案件总量的70%。
C．调查显示，闪婚夫妻婚后感情更加融洽。
D．调查显示，恋爱时间过长的夫妻离婚率高于闪婚夫妻。
E．非闪婚夫妻离婚的情况也不在少数。张师傅下岗后再就业，做起了小商品生意，第一次进货时，他以每件。元的价格购进了20
张师傅下岗后再就业，做起了小商品生意，第一次进货时，他以每件。元的价格购进了20件甲种小商品，以每件b元的价格购进了30件乙种小商品(a＞b)；回来后，根据市场行情，他将这两种小商品都以每件
元的价格出售．在这次买卖中，张师傅是( )．
某老人旅行团游览A，B，C三个景点，有1人因病三景点全未去，三景点全都游览有1人
某老人旅行团游览A，B，C三个景点，有1人因病三景点全未去，三景点全都游览有1人，游览两景点的有15人。游览A景点和游览B景点的人数之和为29人，游览A景点和游览C景点的人数之和为25人，游览B景点和游览C景点的人数之和为20人，那么该老人旅行团的人数为( )． A．30
B．28
C．25
D．22
E．(E) 21
关于x的方程kx2-(2k+1)x+k=0有相异两个实数根，则k的取值范围是()
关于x的方程kx2-(2k+1)x+k=0有相异两个实数根，则k的取值范围是( )．
(E) 以上结果均不正确
Anarrowingofyourworkinterestsisimpliedin
A、narrowing of your work interests is implied in almost any transition from a study environment to managerial or professional work. In the humanities and social sciences you will at best reuse only a fraction of the material (1) in three or four years’ study. In most career paths academic knowledge only (2) a background to much more applied decision-making.Even with a " training " form of degree, (3) a few of the procedures or methods (4) in your studies are likely to be continuously relevant in your work. Partly this (5) the greater specialization of most work tasks compared (6) studying. Many graduates are not (7) with the variety involved in (8) from degree study in at least four or five subjects a year to very standardized job (9) .Academic work values (10) inventiveness, originality, and the cultivation of self-realization and self-development.Emphasis is placed (11) generating new ideas and knowledge, assembling (12) information to make a " rational " decision, appreciating basic (13) and theories, and getting involved in fundamental controversies and debates. The humanistic values of higher (14) encourages the feeling of being (15) in a process with a self-developmental rhythm. (16) , even if your employers pursue enlightened personnel development (17) and invest heavily in " human capital " —for example, by rotating graduate trainees to (18) their work experiences—you are still likely to notice and feel (19) about some major restrictions of your (20) and activities compared with a study environment.
[A] practiced[B] described[C] encountered[D] analyzed死者不是甲用匕首在餐厅里谋杀的，因此，他是乙用手枪在洗手间里谋杀的。上述论证依赖
死者不是甲用匕首在餐厅里谋杀的，因此，他是乙用手枪在洗手间里谋杀的。 上述论证依赖于以下哪项前提 Ⅰ．这次谋杀或者用匕首或者用手枪。 Ⅱ．这次谋杀或者在餐厅或者在洗手间。 Ⅲ．谋杀者或者是甲或者是乙。 Ⅳ．死者或者是甲用匕首在餐厅里谋杀的，或者是乙用手枪在洗手间里谋杀的。 A．仅仅Ⅰ。 B．仅仅Ⅱ。 C．仅仅Ⅲ。 D．仅仅Ⅳ。 E．Ⅰ、Ⅱ和Ⅲ。若x1，x2是方程x2-3x=4的两个根，则|x1-x2|的值为()．(A)5(
若x1，x2是方程x2-3x=4的两个根，则|x1-x2|的值为()．
A、5
B、-5
C、-3
D、3
E、以上答案均不正确Inthepeople’sRepublicofChinatheoddprequa
In the people’s Republic ofChina the odd prequake behavior of horses and other animals (1) successfully to warn people that earthquakes (2) . Recently, a group ofAmerican geologists and geographers visitedChina and listened with great interest (3) the scientists there (4) explained how they have been able to predict many earthquakes in the past three years. TheAmerican scientists compared the (5) of the uniqueChinese program (6) the impact ofChinese acupuncture (7) Western medicine.
TheChinese scientists use (8) but they also monitor strange (9) such as various ground noises, the fluctuation of well-water levels, and the strange behavior of animals. The results are quite interesting,Chinese seismologists, for example, (10) predicted two magnitude 6.9 quakes near theChina-Burma (11) on May 9,1976. The seismologists say that their predictions have been (12) precise that they were able to evacuate many of their people (13) an earthquake occurred, (14) saving thousands of lives. (15) , theChinese experts also admit that there have been some false alarms.
American scientists have (16) stories of unusual prequake animal behavior before, but they (17) them too seriously until their recent visit toChinA、"Maybe there’s (18) in it", said JackEverndon, aCalifornia scientist. We need some kind of short-term warning. We need something.
He didn’t mention the kind of research he may be considering, "Some of us are thinking it’s (19) enough to give it a serious look," he commenteD、"Two years ago we (20) that.\
A、signalsB、things C、animals D、mattersItisjustoneexampleofthegrowingconcernove
It is just one example of the growing concern over the increasing power consumption and environmental impact of computers.
A、study found that the power consumption of data centers doubled between 2000 and 2005, and now accounts for 1.2% ofAmerican electricity consumption, though other estimates put the figure at 4%.Companies now spend as much as 10% of their technology budgets on energy, says Rakesh Kumar of Gartner, a consultancy.
Power consumption has increased because of the rise of the internet, of course, but also because of way in which computers have historically been designed: to maximize performance at all costs.Between 1996 and 2006, the number of servers in use went from 6 million to 28 million and the average power consumption of each server grew from 150 watts to 400 watts.But things are now starting to change and the computer industry has been seized with enthusiasm for "green computing".Theinventionofbothlabor-savingtoolsandto
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、enemies B、neighbors C、disastersD、animalsWhentheAmericaneconomywasrunningfulltilt
When theAmerican economy was running full tilt two years ago, few places were as breathlessly delighted as Seattle. Its port was thronged with ships bringing goods fromAsi
A、TheBoeingCompany could barely keep up with demand for its airliners. Microsoft was hiring hordes of software engineers.After each rain shower, another Internet millionaire sprang up. Here was a city that had it all--OldEconomy, NewEconomy, Not-Yet-InventedEconomy.
Now it has all gone sour. The past 12 months have been a non-stop succession of disappointments.Boeing’s headquarters decamped toChicago. The Internet economy popped alike a balloon in a nail factory, taking with it once promising local ventures such as Homegrocer.com and leaving can’t-possibly-miss companies such as drugstore.com barely hanging on.And an already troubledBoeing was hit even harder after September 11th both by a steep drop in airliner orders and by losing a $ 200 billion Joint Strike Fighter contract to Lockheed Martin.
Washington State, battered by what is happening in Seattle, now has the highest unemployment rate in the United States--6.6% compared with 5.4% in the country as a whole. Right behind it is next-door Oregon, another former boom state, with 6.5% of its workforce out of a job, the country’s second worst figure. In Oregon, manufacturing’s collapse has caused the loss of nearly 30,000 jobs in a year, those hit range from Freightliner, a maker of heavy lorries, to high-tech companies such as Intel and Fujitsu.
What makes the current plunge so painful is that every part of the economy seems to have stepped into an open manhole at the same time. Three years ago, whenBoeing began to remove more than 20,000 people thatBoeing expects to lay off by the middle of 2002 have to compete with unemployed workers not just from the high-tech industry but from construction work and even the retail sector. Portland now has more jobless than the other parts of Oregon: the opposite of how things were years ago.
Even worse, the Pacific north west’s downturn, as well as being deeper than the rest of the country, may also last longer. One reason for fearing this isBoeing’s continuing woes. NowadaysBoeing accounts for less than 5% of employment in the Seattle area, down from 9% two decades ago.But it remains the foundation on which the rest is built. Its network of suppliers and subcontractors gives it a far stronger multiplier effect than, say, Microsoft, which is more an island of prosperity than a center of weB、The chances are thatBoeing will not really bounce back until the assumed revival in air travel persuades airline companies to start buying plenty of aircraft again.And that may not be until 2003.
What does the passage imply about "Homegrocer.com" and "drugstore.com"
A、They are neither promising companies.
B、They are affiliated to large companies.
C、They are dealing in medical products.
D、They are also affected by the economic crisis.Theinventionofbothlabor-savingtoolsandto
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、but B、andC、whileD、thusTheinventionofbothlabor-savingtoolsandto
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、farB、furtherC、fartherD、furthestTheinventionofbothlabor-savingtoolsandto
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、originsB、devices C、sources D、evidencesSeptember11shouldhavedrivenhomeabasicles
September 11 should have driven home a basic lesson for theBush administration about life in an interconnected world: misery abroad threatens security at home. It is no coincidence that OsamaBin Laden found warm hospitality in the Taliban’sAfghanistan, whose citizens were among the most impoverished and oppressed on earth. If the administration took this lesson seriously, it would dump the rules of realpolitik that have governed U.S. foreign aid policy for 50 years. Instead, it is pouring money into an ally of convenience, Pakistan, which is ultimately likely to expand the ranks of anti-American terrorists abroaD、
To enlist Pakistan in the fight against the Taliban, theBush administration resurrected theCold War tradition of propping up despotic military regimes in the name of peace and freedom. Its commitment of billions of dollars to Pakistan since September 11 will further entrench the sort of government that has made Pakistan both a development failure and a geopolitical hotspot for decades. Within Pakistan, the aid may ultimately create enough angry young men to make upA1 Qaeda’s losses inAfghanistan. In SouthAsia as a whole, the cash infusion may accelerate a dangerous arms race with Indi
A、
Historically, the U.S. government has cloaked aid to allies such as Pakistan in the rhetoric of economic development.As aCold War ally, Pakistan received some $ 37 billion in grants and loans from the West between 1960 and 1990, adjusting for inflation.And since September 11, the U.S. administration has promised more of the’ same. It has dropped sanctions imposed after Pakistan detonated a nuclear bomb in 1998, pushed through a $1.3 billion IMF loan for Pakistan, and called for another $2 billion from the WorldBank and theAsianDevelopmentBank. TheBush administration is also, ironically, pressing allies to join it in canceling or rescheduling billions of dollars of old (and failed) loans that were granted in past decades in response to similar arm-twisting.
Despite--even because of--all this aid, Pakistan is now one of the most indebted, impoverished, militarized nations on earth. The causes of Pakistan’s poverty are sadly familiar. The government ignored family planning, leading to population expansion from 50 million in 1960 to nearly 150 million today, for an average growth rate of 2.6 percent a year. Foreign aid meant to pave rural roads went into unneeded city highways--or pockets of top officials.And the military grew large, goaded by a regional rivalry with India that has three times bubbled into war. The result is a government that, as former WorldBank economist WilliamEasterly has observed, "cannot bring off a simple and cheap measles (麻疹) vaccination (预防接种) program, and yet...can build nuclear weapons.\
It implies in the passage that ______.
A、the U.S. government has been helping Pakistan’s economic development
B、the U.S. approved Pakistan’s detonating nuclear bomb
C、the Pakistan government is corrupt
D、the Pakistan government didn’t pay much attention to family planning某市主要干道上的摩托车车道的宽度为2米，很多骑摩托车的人经常在汽车道上抢道行驶，
某市主要干道上的摩托车车道的宽度为2米，很多骑摩托车的人经常在汽车道上抢道行驶，严重破坏了交通秩序，使交通事故频发。有人向市政府提出建议：应当将摩托车车道扩宽为3米，让骑摩托车的人有较宽的车道，从而消除抢道的现象。
以下哪项如果为真，最能削弱上述论点
A．摩托车车道宽度增加后，摩托车车速将加快，事故也许会随着增多。
B．摩托车车道变宽后，汽车车道将会变窄，汽车驾驶者会有意见。
C．当摩托车车道扩宽后，有些骑摩托车的人仍会在汽车车道上抢道行驶。
D．扩宽摩托车车道的办法对汽车车道上的违章问题没有什么作用。
E．扩宽摩托车车道的费用太高，需要进行项目评估。Directions:Readthefollowingtext.Chooseth
Directions: Read the following text.Choose the best word(s) for each numbered blank.A．low-dose
According to a report by theAmerican HeartAssociation, doctors should consider prescribing{{U}} (5) {{/U}}aspirin for middle-aged people with a family history of, or{{U}} (6) {{/U}}for, heart disease. (Risk factors include smoking, being more than 20 percent overweight, high blood pressure and lack of exercise. )
Aspirin is also a lifesaver during heart attacks. Paramedics now give it routinely, and experts urge anyone with chest pain, {{U}} (7) {{/U}}if it spreads to the neck, shoulder or an arm, or is accompanied by sweating, nausea (恶心), lightheadedness and breathing difficulty to chew and {{U}} (8) {{/U}}an aspirin tablet immediately.
When taking aspirin for heart attack, {{U}} (9) {{/U}}the plain, uncoated variety. For even faster absorption, crush and mix with a little water. Speed of absorption is critical because most heart attack deaths occur{{U}} (10) {{/U}}the first few hours after chest pain strikes.
B．high-amount
C．more
D．rightA．条件(1)充分，但条件(2)不充分．B．条件(2)充分，但条件(1)不充分．
A．条件(1)充分，但条件(2)不充分．
B．条件(2)充分，但条件(1)不充分．
C．条件(1)和(2)单独都不充分，但条件(1)和条件(2)联合起来充分．
D．条件(1)充分，条件(2)也充分．
E．条件(1)和(2)单独都不充分，条件(1)和条件(2)联合起来也不充分． 已知|a|=5，|b|=7，则|a+b|=2．
(1)ab＜0；(2)ab＞0．Oneofthequestionsthatiscomingintofocusas
One of the questions that is coming into focus as we face growing scarcity of resources of many kinds in the world is how to divide limited resources among countries. In the international development community, the conventional wisdom has been that the 2 billion people living in poor countries could never expect to reach the standard of living that most of us in NorthAmerica enjoy, simply because the world does not contain enough iron ore, protein, petroleum, and so on.At the same time, we in the United States have continued to pursue super affluence as though there were no limits on how much we could consume. We make up 6 percent of the world’s people; yet we consume one-third of the world’s resources.
As long as the resources we consumed each year came primarily from within our own boundaries, this was largely an internal matter.But as our resources come more and more from the outside world, "outsiders" are going to have some say over the rate at which and terms under which we consume. We will no longer be able to think in terms of "our" resources and "their" resources, but only of common resources.
AsAmericans consuming such a disproportionate share of the world’s resources, we have to question whether or not we can continue our pursuit of super affluence in a world of scarcity. We are now reaching the point where we must carefully examine’ the presumed link between our level of well-being and the level of material goods consumeD、If you have only one crust of bread and get another crust of bread, your well-being is greatly enhanceD、But if you have a loaf of bread, then an additional crust of bread doesn’t make that much difference. In the eyes of most of the world today,Americans have their loaf of bread and are asking for still more. People elsewhere are beginning to ask why. This is the question we’re going to have to answer, whether we’re trying to persuade countries to step up their exports of oil to us or trying to convince them that we ought to be permitted to maintain our share of the world fish catch.
The prospect of a scarcity of, and competition for, the world’s resources requires that we reexamine the way in which we relate to the rest of the worlD、It means we find ways of cutting back on resource consumption that is dependent on the resources and cooperation of other countries. We cannot expect people in these countries to concern themselves with our worsening energy and food shortages unless we demonstrate some concern for the hunger, illiteracy and disease that are diminishing life for them.
The writer warnsAmericans that ______.
A、their excessive consumption has caused world resource exhaustion
B、they are confronted with the problem of how to obtain more material goods
C、their unfair share of the world’s resources should give way to proper division among countries
D、they have to discard their cars for lack of fossil fuel in the world