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【单选题】
Part B (10 points) You are going to read a text about the approaches to creating championship, followed by a list of examples. Choose the best example. (41) What do you need in order to be a record breaker? Sports experts agree that the single most important factor in creating a champion is genetic make-up, the possession of genes that impart an innate ability to stride leap, burn energy efficiently or suck lots of oxygen from the air. 'The great athletes are genuine statistical outliers...physiological freaks,' says sports scientist Craig Sharp of Brunel University in Middlesex, UK. (42) How will we find or create the next generation of champion athletes? The most likely way is to widen our search to find someone with a genetic makeup that allows him or her to surpass other athletes. When East African runners began competing internationally, for example, it became apparent that their light frame. make them uniquely economical in their use of energy. (43) Have we reached the limit of human performance? No, but records are being broken by ever narrower margins. When statisticians plot how the best performance in a given event changes over time, they see the graph leveling off. And the shorter the event, the smaller are the slivers of time being shaved off. So al though Paula Radcliffe has sliced whole seconds off the marathon world record, sprinters are improving by mere hundredths of a second. (44) Will we ever reach an absolute limit? Theoretically, an absolute time to how far or fast the human body can go does, but 'where it is we don't know,' says Millar. Perhaps the only way we can recognize the ultimate performance will be retrospectively, after a record has stood for years. (45) In future, will athletes simply test their limits in new ways? As records become harder and harder to break, we may start comparing athletes by other standards, such as the number of gold medals or their performance over time. Lance Armstrong's six consecutive wins in the Tour de France, for example, may never be surpassed. 'The elite might be defined by how many times they win', says Millar.
A.
Athletes might also invent new sports to test themselves. The emergence of the triathlon in the 1970s was fuelled by runners, swimmers and cyclists looking for a new challenge; it made its debut as an Olympic event in 2000.
B.
Once scientists have identified the genes that confer a genetic advantage in sport, athletes might also be screened to pick out the ones with most genetic potential. 'There are all sorts of people out there, and we don't know what they can do', says exercise and sports scientist Carl Foster of the University of Wisconsin in La Crosse. Because the rewards are growing and competition is becoming more intense, athletes are being driven more and more towards drugs to gain the edge. Experts predict that the next generation of champions will include many doped ones. They are particularly fearful of 'gene doping' in which athletes boost the performance of key genes.
C.
Psychology is vital. Athletes need enormous focus and drive to win. Many people think that the main barrier to breaking the four-minute mile was a psychological one: once Roger Bannister did it in 1954, several others clocked sub-four-minute times shortly afterwards. Sometimes breaking a record involves taking a risk in an event, such as breaking from the pack with a full lap to go, and that takes a certain state.
D.
Not every sport can be accurately measured, of course. Running and jumping can be quantified with stick or stopwatch, but football and tennis performances are much harder to gauge.
E.
On top of this, however, training and technique are vital. They allow athletes to sculpt muscles, for example, so that they burn less energy while achieving the same speeds as others.
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【单选题】以下不属于中国应对美国长期控制金融措施的是
A.
将持有的美元、外汇的所有权证书转化成所需资源
B.
防范货币金融体系带来的风险
C.
把握持有美元的机会成本
D.
夺取货币金融体系的定价权和主导权
【判断题】胸膜腔负压,吸气时比呼气时高。
A.
正确
B.
错误
【简答题】简要说明数据、信息、知识的定义。并举例说明数据-信息-知识的加工过程。 2.举例说明一种科技文献类型的特点。 3.文献应做如何处理才可便于检索? 4.列举你的信息获取源,并对其信息质量做排序。 注:以上题目可选做2-3题,不少于2题。
【单选题】如何检索特定类型的文献?
A.
检索后手工筛选特定类型文献
B.
在搜索引擎中输入“特定类型文献”
C.
在不同的搜索引擎中进行检索
D.
在检索式中限定文件类型
【单选题】可以开发票吗?
A.
您好,亲,欢迎光临骆驼天猫旗舰店。来访高峰时期人工客服回复较慢,请您体谅。
B.
亲,真是太不好意思了哦,高峰时期人工客服回复较慢,让您久等了。
C.
亲,可以联系我们的客服,也可以直接申请退款。
D.
亲爱的客户您好,骆驼天猫官方旗舰店全部商品默认开具电子发票。
【单选题】Science Direct如何获取与研究主题相关的文献
A.
限定文献来源:所有资源,期刊,图书,参考工具书
B.
限定检索字段:新增加的Specific Author字段可以更加准确的检索特定作者的文章
C.
限定文献类型/学科领域/时间
D.
以上均正确
【单选题】你们可以开发票吗?
A.
Tissot天梭官方旗舰店是天梭表品牌在天猫唯一官方直营旗舰店,是天梭在中国大陆线上仅有的官方销售渠道。
B.
您好,可以的。我们店铺现在开电子发票,需要发票的话,可以下单的时候勾选点击发票填写抬头。
C.
您好,如果下单没有勾选,也可以点击订单旁的“补票”按钮进行补开发票。
【单选题】如何检索特定类型的文献?
A.
在检索式中限定文件类型
B.
在不同的搜索引擎中进行检索
C.
检索后手工筛选特定类型文献
D.
在搜索引擎中输入“特定类型文献”
【单选题】你们可以开发票吗?
A.
您好,亲。欢迎光临天梭天猫官方旗舰店,很高兴与您相遇。请问有什么可以帮您的?
B.
您好,可以的。我们店铺现在开电子发票,需要发票的话,可以下单的时候勾选点击发票填写抬头。
C.
您好,如果下单没有勾选,也可以点击订单旁的“补票”按钮进行补开发票。
【简答题】代开发票可以刷卡缴税吗?
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