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下面有3篇短文，每篇短文后有5道题，每题后面有4个选项。请仔细阅读短文并根据短文回答其后面的问题，从4个选项中选择1个最佳答案。第一篇 Young Female Chimps Outlearn Their Brothers Young female chimps are faster and better learners than young male chimps, suggests a new study, echoing learning differences seen in human girls and boys While young male chimps pass their time playing, young female chimps carefully study their mothers. AS a result, they learn how to fish for tasty termite snacks over two years before the boys. Elizabeth Lonsdorf, now at Lincoln Park Zoo in .Chicago, US, and colleagues at the University of Minnesota, Saint Paul, spent four years watching how young ’chimpanzees in the Gombe National Park in Tanzania learned "cultural behavior". The sex differences in learning behavior were "consistent and strikingly apparent", says the team. The researchers point out that similar differences are seen in human children with regard to skills such as writing. "A sex-based learning differences may therefore date back at least to the last common ancestor of chimpanzees and humans," they write in the journal Nature. Chimps make flexible tools from vegetation and then insert them into termite mounds, extract them and then munch the termites clinging onto the tool The researchers used video cameras to record this feeding behavior and found that each chimp mother had her own technique, such as how she used tools of different lengths; Analysis of the six infants whose ages were known showed that girl chimps were an average of 31 months old when they succeeded in fishing out their termites, Where the boy chimps were aged 58 months on average. Females were also more skillful at getting out more termites with every dip and used techniques similar to their mothers while males did not. Instead of studying their mothers, the boy chimps spent a significantly greater amount of time frolicking around the termite mound. Behaviors such as playing or swinging might help the male infants later in life when typically male activities like hunting or fighting for dominance become important, suggest the researchers. Lonsdorf adds that there are just two main sources of animal portein for chimps -- the termites or colobus monkeys. "Mature males often hunt monkeys up trees, but females are almost always either pregnant or burdened with a clinging infant. This makes hunting difficult," she says. "Adult females spend more time fishing, for termites than males." So becoming proficient at termite fishing could mean adult females eat better. "They can watch their offspring at the same time. The young of both sexes seem to pursue activities related to their adult sex roles at a very young age." What are the tools with which chimps fish for termites
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阅读下面这篇短文，短文后有2项测试任务；(1)第23～26题要求．从所给的6个选项中为第2～5段每段选择1个正确的小标题；(2)第27～30题要求从所给的6个选项中选择4个正确选项，分别完成每个句子。 Compact Disks 1 If someone says to you your music CDs don’t really hold any music on them, and they only have numbers recorded on them, you may not believe it. In fact, he is right in that sound is actually recored onto the CDs as special numbers --a digital code. The code is pressed onto the CD as bumps on a long spiral track almost five kilometers long. These bumps are an average of 0.5 microns wide. 2 A small laser beam shines onto the bumps as the CD turns. The light is reflected back to a receiver that records how the laser light bounces back. This lets the CD player turn the reflected light back into the original code. This means you can hear the original code as music. 3 Digital codes are used with many technologies. E-mail needs these kinds of code numbers. Space probes communicate with their ground station on earth using digital codes. Bar codes are read as digital codes in computer systems. Digital communications with cell phones need digital codes. Weather radios also tune in to specific signals using these codes. 4 There are many types of compact disks. One format is called CD-RWs. They can be’ recorded on and re-recorded on (rewritten on) as you would do with a floppy disk. Another format is the CD-ROM. The technology for recording on these disks is different from other CDs. These CDs have a dye layer that the CD writer can darken or leave clear. The clear and dark spots are the digital code. CD-ROM stands for Compact Disc -- Read Only Memory. This disk is like a "super" floppy disk that can hold lots of information. One CD-ROM can h01d the same amount of data as 500 floppy disks. Information is permanently recorded onto it. Computer games and other programs are considered to be CD-ROMs. 5 CDs were first sold to the public in 1982, These CDs still play. well and sound fine. Current CDs are expected to last between 70 to 200 years. Of course, you can make sure your CDs last a long time by taking care of them. 6 Science keeps on developing. It may not be many more years before a completely new technology is invented and introduced to the public for music recording. In the meantime, there is no doubt you will continue to enjoy listening to your favorite music on CDs and playing your favorite computer games on CD-ROMs, Paragraphs 1 & 2 ______ A Digital Code Has Wide ApplicationsB Floppy Disks Are OutdatedC CDs Are DurableD CD’s Working Principle Is ExplainedE CD-RWs Play Better Than CD-ROMsF CDs Are of Many Formats
正源公司系上市公司，属于增值税一般纳税企业，适用的增值税率为17%，适用的所得税税率为25%，所得税采用资产负债表债务法核算。除特别说明外，正源公司采用账龄分析法计提坏账准备，3个月以内账龄的应收款项计提坏账准备的比例为5‰。不考虑除增值税、所得税以外的其他相关税费。正源公司按当年实现净利润的10%提取法定盈余公积。 正源公司2009年度所得税汇算清缴于2010年2月28日完成，在此之前发生的2009年度纳税调整事项，均可进行纳税调整。正源公司2009年度财务报告于2010年3月31日经董事会批准对外报出。 2010年1月1日至3月31日，正源公司发生如下交易或事项； (1)1月14日，正源公司收到乙公司退回的2009年10月4日从其购入的一批商品，以及税务机关开具的进货退出证明单。当日，正源公司向乙公司开具红字增值税专用发票。该批商品的销售价格(不含增值税)为200万元，增值税为34万元，销售成本为185万元。假定正源公司销售该批商品时，销售价格是公允的，也符合收入确认条件。至2010年1月 14日，该批商品的应收账款尚未收回。 (2)正源公司与甲公司签订供销合同，合同规定正源公司在2009年7月供应给甲公司一批物资，由于正源公司未能按照合同发货，致使甲公司发生重大经济损失。2009年12月，甲公司通过法律程序要求正源公司赔偿经济损失200万元，该诉讼案在12月31日尚未判决，正源公司已确认预计负债100万元。2010年2月8日，经法院一审判决，正源公司需要赔偿甲公司经济损失140万元，正源公司不再上诉，并且赔偿款已经支付。按照税法规定，上述诉讼所确认的损失在实际发生时允许从应纳税所得额中扣除。 (3)2月26日，正源公司获知丙公司被法院依法宣告破产，预计应收丙公司账款250万元 (含增值税)收回的可能性极小，应按全额计提坏账准备。正源公司在2009年12月31日已被告知丙公司资金周转困难无法按期偿还债务，因而按应收丙公司账款余额的50%计提了坏账准备。 上述业务发生后，资产负债表中的“应交税费”项目的调整额为( )万元。
阅读下面的短文，文中有15处空白，每处空白给出了4个选项，请根据短文的内容从4个选项中选择1个最佳答案。 Animal’s "Sixth Sense" A tsunami was triggered by an earthquake in the Indian Ocean in December, 2004. It killed tens of thousands of people in Asia and East Africa. Wild animals, (51) , seem to have escaped that terrible tsunami. This phenomenon adds weight to notions that they possess a "sixth sense" for (52) , experts said. Sri Lankan wildlife officials have said the giant waves that killed over 24,000 people along the Indian Ocean island’s coast clearly (53) wild beasts, with no dead animals found. "No elephants are dead, not (54) a dead rabbit. I think animals can (55) disaster. They have a sixth sense. They know when things are happening," H.D. Ratnayake, deputy director of Sri Lanka’s Wildlife Department, said about one month after the tsunami attack. The (56) washed floodwaters up to 2 miles inland at Yala National ’Park in the ravaged southeast, Sri Lanka’s biggest wildlife (57) and home to hundreds of wild elephants and several leopards. "There has been a lot of (58) evidence about dogs barking or birds migrating before volcanic eruptions or earthquakes. But it has not been proven," said Matthew van Lierop, an animal behavior (59) at Johannesburg Zoo. "There have been no (60) studies because you can’t really test it in a lab or field setting," he told Reuters. Other authorities concurred with this (61) . "Wildlife seem to be able to pick up certain (62) , especially birds... there are many reports of birds detecting impending disasters," said Clive Walker, who has written several books on African wildlife. Animals (63) rely on the known senses such as smell or hearing to avoid danger such as predators. The notion of an animal "sixth sense" -- or (64) other mythical ’power -- is an enduring one which the evidence on Sri Lanka’s ravaged coast is likely to add to. The Romans saw owls (65) omens of impending disaster and many ancient cultures viewed elephants as sacred animals endowed with special powers or attributes.
阅读下面这篇短文，短文后列出7个句子，请根据短文的内容对每个句子做出判断。 Engineering Ethics Engineering ethics is attracting increasing interest in engineering universities throughout the nation. At Texas A&M University, evidence of this interest in professional ethics culminated in the creation of a new course in engineering ethics, as well as a project funded by the National Science Foundation to develop material for introducing ethical issues into required undergraduate engineering courses. A small group of faculty and administrators actively supported the growing effort at Texas A&M, yet this group must now expand to meet the needs of increasing numbers of students wishing to learn more about the value implications of their actions as professional engineers. The increasing concern for the value dimension of engineering is, at 1east in part, a result of the attention that the media has given to cases such as the Challenger disaster, the Kansas City Hyatt-Regency Hotel walkways collapse, and the Exxon oil spill. As a response to this concern, a new discipline, engineering ethics, is emerging. This discipline will doubtless take its place alongside such well-established fields as medical ethics, business ethics, and legal ethics. The problem presented by this development is that most engineering professors are not prepared to introduce literature in engineering ethics into their classrooms. They are most comfortable with quantitative concepts and often do not believe they are qualified to lead class discussions on ethics. Many engineering faculty members do not think that they have the time in an already overcrowded syllabus to introduce discussions on professional ethics, or the time in their own schedules to prepare the necessary material. Hopefully, the resources presented herein will be of assistance. The number of students wishing to take the course of engineering ethics is declining at Texas A&M University.
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