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以下不是产业结构合理化的标志是（   ）
A、对资源的合理使用
B、消费者的满意度
C、与“标准结构”的差异
D、对市场需求的适应程度

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未知题型
Every Saturday morning, at 9 am, more than 50,000 runners set off to run 5km around their localpark. The Parkrun phenomenon began with a dozen friends and has inspired 400 events in the UKand more abroaD.Events are free, staffed by thousands of volunteers. Runners range from four yearsold to grandparents; their times range from Andrew Baddeley&39;s world record 13 minutes 48 secondsup to an hour.
Parkrun is succeeding where London&39;s Olympic "legacy" is failing. Ten years ago on Monday, itwas announced that the Games of the 30th Olympiad would be in London. Planning documentspledged that the great legacy of the Games would be to level a nation of sport lovers away fromtheir couches. The population would be fitter, healthier and produce more winners. It has nothappeneD.The number of adults doing weekly sport did rise, by nearly 2 million in the run－up to2012－but the general population was growing faster. Worse, the numbers are now falling at anaccelerating ratE.The opposition claims primary school pupils doing at least two hours of sport aweek have nearly halveD.Obesity has risen among adults and children. Official retrospectionscontinue as to why London 2012 failed to "inspire a generation." The success of Parkrun offersanswers.
Parkun is not a race but a time trial: Your only competitor is the clock. The ethos welcomes anybody. There is as much joy over a puffed-out first-timer being clapped over the line as there is about toptalent shining. The Olympic bidders, by contrast, wanted to get more people doing sports and toproduce more elite athletes. The dual aim was mixed up: The stress on success over taking part wasintimidating for newcomers.
Indeed, there is something a little absurd in the state getting involved in the planning of such afundamentally "grassroots", concept as community sports associations. If there is a role forgovernment, it should really be getting involved in providing common goods－making sure there isspace for playing fields and the money to pave tennis and netball courts, and encouraging the provision of all these activities in schools. But successive governments have presided over sellinggreen spaces, squeezing money from local authorities and declining attention on sport in education. Instead of wordy, worthy strategies, future governments need to do more to provide the conditionsfor sport to thrivE.Or at least not make them worsE.
21.According to Paragraph1, Parkrun has_____.
A.gained great popularity
B.created many jobs
C.strengthened community ties
D.become an official festival
With regard to mass sport, the author holds that governments should_____.A.organize 'grassroots' sports events
B.supervise local sports associations
C.increase funds for sports clubs
D.invest in public sports facilities
The author believes that London's Olympic 'legacy' has failed to_____.A.boost population growth
B.promote sport participation
C.improve the city's image
D.increase sport hours in schools
Parkrun is different from Olympic games in that it_____.A.aims at discovering talents
B.focuses on mass competition
C.does not emphasize elitism
D.does not attract first-timers
The author's attitude to what UK governments have done for sports is_____.A.tolerant
B.critical
C.uncertain
D.sympathetic
请帮忙给出每个问题的正确答案和分析，谢谢！
判断题
轴测图一定是正投影
未知题型
Today, widespread social pressure to immediately go to college in conjunction with increasinglyhigh expectations in a fast-moving world often causes students to completely overlook thepossibility of taking a gap year. After all, if everyone you know is going to college in the fall, itseems silly to stay back a year, doesn&39;t it? And after going to school for 12 years, it doesn&39;t feel9natural to spend a year doing something that isn ’t academiC.But while this may be true, it ’s not a good enough reason to condemn gap years. There&39;s alwaysconstant fear of falling behind everyone else on the socially perpetuated “race to the finish line, whether that be toward graduate school, medical school or lucrative career. But despite commonmisconceptions, a gap year does not hinder the success of academic pursuits－in fact, it probablyenhances it.
Studies from the United States and Australia show that students who take a gap year are generallybetter prepared for and perform. better in college than those who do not. Rather than pulling studentsback, a gap year pushes them ahead by preparing them for independence, new responsibilities andenvironmental changes－all things that first-year students often struggle with the most. Gap yearexperiences can lessen the blow when it comes to adjusting to college and being thrown into a brandnew environment, making it easier to focus on academics and activities rather than acclimationblunders.
If you&39;re not convinced of the inherent value in taking a year off to explore interests, then considerits financial impact on future academic choices. According to the National Center for EducationStatistics, nearly 80 percent of college students end up changing their majors at least oncE.This isn surprising, considering the basic mandatory high school curriculum leaves students with a poorunderstanding of themselves listing one major on their college applications, but switching to anotherafter taking college classes.
It ’s not necessarily a bad thing, but depending on the school, it cancostly to make up credits after switching too late in the gamE.At Boston College, for example, youwould have to complete an extra year were you to switch to the nursing school from anotherdepartment. Taking a gap year to figure things out initially can help prevent stress and save moneylater on.
31.One of the reasons for high-school graduates not taking a gap year is that_____.
A.they think it academically misleading
B.they have a lot of fun to expect in college
C.it feels strange to do differently from others
D.it seems worthless to take off-campus courses
The word “acclimation ” （Line 8, ParA.3）is closest in meaning to_____.A.adaptation
B.application
C.motivation
D.competition
The most suitable title for this text would be_____.A.In Favor of the Gap Year
B.The ABCs of the Gap Year
C.The Gap Year Comes Back
D.The Gap Year: A Dilemma
Studies from the US and Australia imply that taking a gap year helps_____.A.keep students from being unrealistic
B.lower risks in choosing careers
C.ease freshmen’s financial burdens
D.relieve freshmen of pressures
A gap year may save money for students by helping them_____.A.avoid academic failures
B.establish long-term goals
C.switch to another college
D.decide on the right major
请帮忙给出每个问题的正确答案和分析，谢谢！
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