题目内容
根据材料回答{TSE}题： Leukemia Leukemia is the most common type o{ cancer kids get, but
查看答案
搜索结果不匹配？点我反馈
更多问题
根据材料回答{TSE}题： 第一篇Single-parent Kids Do Best Single mums are better at raising their kids than two parents—at least in the bird world. Mother zebra finches have to work harder and raise fewer chicks on their own, but they also produce more at-tractive sons who are more likely to get a mate. The finding shows that family conflict is as important an evolutionary driving force as. ecologicalfactors such as hunting and food supply. With two parents around, there's always a conflict of inter-ests, which can have a detrimental effect on the quality of the offspring. In evolutionary terms, the best strategy for any parent in the animal world is to find someone elseto care for their offspring, so they can concentrate on breeding again. So it's normal for parents to tryto pass the buck to each other. But Ian Hartley from the University of Lancaster and his team won-dered how families solve this conflict, and how the conflict itself affects the offspring. To find out, they measured how much effort zebra finch parents put into raising their babies.They compared single females with pairs, by monitoring the amount of food each parent collected, andremoving or adding chicks so that each pair of birds was raising four chicks, and each single mum hadtwo—supposedly the same amount of work. But single mums, they found, put in about 25 per cent more~ effort, than females rearing with theirmate. To avoid being exploited, mothers with a partner hold back from working too hard if the fatheris being lazy, and it s the chicks that pay the price. "The offspring suffer some of the.cost of this con-flict" says Hartley. The cost does not show in any obvious decrease in size or weight, but in how attractive they are tothe opposite sex. When the chicks were mature, the researchers tested the "fitness" of the male off-spring by offering females their choice of partner. Those males reared by single mums were chosenmore often than those from two-parent families. Sexual conflict has long been thought to affect the quality of care given to offspring, says zoolo-gist Rebecca Kilner at Cambridge University, who works on conflict of parents in birds. "But the ex-perimental evidence is not great. The breakthrough here is showing it empirically." More surprising,says Kilner, is Hartley's statement that conflict may be a strong influence on the evolution of behav-ior, clutch size and even appearance. "People have not really made that link," says Hartley. A female'sreproductive strategy is usually thought to be affected by hunting and food supply. Kilner says conflictof parents should now be taken into account as well. {TS}With which of the following statements would the author probably agree？
根据材料回答{TSE}题： Bill Gates: Unleashing Your Creativity I've always been an optimists and I suppose that is rooted in my belief that the power of creativity and intelligence can make the world a better place. For as long as I can remember, I've loved learning new things and solving problems. So when I satdown at a computer for the first time in seventh grade, I was hooke D. It was a chunky old teletype ma-chine and it could barely do anything compared to the computers we have today. But it changed my life. When my friend Paul Allen and I started Microsoft 30 years ago, we had a vision of“a computeron every desk and in every home,” which probably sounded a little too optimistic at a time when mostcomputers were the size of refrigerators. But we believed that personal computers would change their world. And they have. And after 30 years, I'm still as inspired by computers as I was back in seventh grade. I believe that computers are the most incredible tool we can use to feed our curiosity and inven-tiveness-to help us solve problems that even the smartest people couldn't solve on their own. Computers have transformed how we learn, giving kids everywhere a window into all of theworld's knowledge. They're helping us build communities around the things we care about and to stayclose to the people who are important to us, no matter where they are. Like my friend Warren Buffett, I feel particularly lucky to do something every day that I love todo. He calls it "tap-dancing to work". My job at Microsoft is as challenging as ever, but what makesme "tap-dancing to work" is when we show people something new, like a computer that can recognizeyour handwriting or your speech, or one that can store a lifetime's worth of photos, and they say, "Ididn't know you could do that with a PC!" But for. all the cool things that a person can do with a PC, there are lots of other ways we can putour creativity and intelligence to work to improve our worl D. There are still far too many people in theworld whose most basic needs go unmet. Every year, for example, millions of people die from diseasesthat are easy to prevent or treat in the developed world. I believe that my own good fortune brings with it a responsibility to give back to the world. My wife, Melinda, and I have committed to improving health and education in a way that can help as manypeople as possible. As a father, I believe that the death of a child in Africa is no less poignant or tragic than the deathpf a child anywhere else, and that it doesn't take much to make an immense difference in thesechildren's lives. I'm still very much an optimist, and I believe that progress on even the world's toughest problemsis possible--and it's happening every day. We're seeing new drugs for deadly diseases, new diagnostictools, and new attention paid to the health problems in the developing world. I'm excited by the possibilities I see for medicine, for education and, of course, for technology.And I believe that through our natural inventiveness, creativity and willingness to solve tough prob-lems, we're going to make some amazing in all these area in my life. {TS}A computer was as big as an icebox when Bill Gates was a high school student. A. Right B. Wrong C. Not mentioned
It is the unique nutrient profile of flaxseed__________
A. ifB. as ifC. thoughD. as though
微信支付 
支付宝支付