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The Case of the Disappearing Fingerprints One useful anti-cancer drug can effectively erase the whorls and other characteristic marks that give people their distinctive fingerprints. Losing (51) become troublesome. A case released online in a letter by Annals of Oncology indicates how big a (52) of losing fingerprints is. Eng-Huat Tan, a Singapore-based medical doctor describes a 62-year old man who has used capecitabine to (53) his nasopharyngeal cancer. After three years on the (54) , the patient decided to visit U.S. relatives last December. But he was stopped by U.S customs officials (55) 4 hours after entering the country when those officials couldn’t get fingerprints from the man. There were no distinctive swirly (56) appearing from his index finger. U.S. customs has been fingerprinting incoming foreign visitors for years, Tan says. Their index fingers are (57) and screened against digital files of the fingerprints of bad guys—terrorists and potential criminals that our federal guardians have been tasked with keeping out of the country. Unfortunately, for the Singapore travelers, one potential (58) effect of his drug treatment is a smoothing of the tissue on the finger pads. (59) , no fingerprints. "It is uncertain when fingerprint loss will (60) to take place in patients who are taking capecitabine," Tan points out. So he cautions any physicians who (61) the drug to provide their patients with a doctor’s note pointing out that their medicine may cause fingerprints to disappear. Eventually, the Singapore traveler made it into the United States. I guess the name on his passport didn’t raise any red flags. But he’s also now got the explanatory doctor’s note-and won’t leave home (62) it. By the way, maybe the Food and Drug Administration, (63) approved use of the drug years ago, should consider (64) its list of side effects associated with this medicine. The current list does note that patients may experience vomiting, stomach pain and some other side effects. But no where (65) it mention the potential for loss of fingerprints.
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结合实际论述艺术鉴赏的基本过程和市美效应。
Electric Backpack Backpacks are convenient. They can hold your books, your lunch, and a change of clothes leaving your hands free to do other things. Someday, if you don’t mind carrying a heavy load, your backpacks might also power your MP3 player, keep your cell phone running, and maybe even light your way home. Lawrence C. Rome and his colleagues from the University of Pennsylvania in Philadelphia and the Marine Biological Laboratory in WoodsHole, Mass. have invented a backpack that makes electricity from energy produced while its wearer walks. In military actions search-and-rescue operations and scientific field studies, people rely increasingly on cell phones global positioning system (GPS) receivers, night-vision goggles, and other battery powered devices to get around and do their work. The backpack’s electricity-generating feature could dramatically reduce the amount of a wearer’s load now devoted to spare batteries, report Rome and his colleagues in the Sept.9 science. The backpack’s electricity-creating powers depend on springs used to hang a cloth pack from its metal frame. The frame sits against the wearer’s back, and the whole pack moves up and down as the person walks. A gear mechanism converts vertical movements of the pack to rotary motions of an electrical generator, producing up to 7.4 watts. Unexpectedly, tests showed that wearers of the new backpack alter their gaits in response to the pack’s oscillations, so that they carry loads more comfortably and with less effort than they do ordinary backpacks. Because of that surprising advantage, Rome plans to commercialize both electric and non-electric versions of the backpack. The backpack could be especially useful for soldiers, scientists, mountaineers, and emergency workers who typically carry heavy backpacks. For the rest of us, power-generating backpacks could make it possible to walk, play video games, watch TV, and listen to music, all at the same time. Electricity-generating packs aren’t on the market yet, but if you do get one eventually just make sure to look both ways before crossing the street! The word "springs" in Paragraph 3 means ______.
患者，女，45岁，经常头痛，头晕10年，加重2d，伴有恶心呕吐送急诊，检查：神志模糊，BP230/120mmHg，尿蛋白(++)，尿糖(+)。 若诊断成立，其发病机制是
患者，女，28岁，因心悸，气急，胸闷半个月入院。病前2周曾有发热，腹泻史。体检：肺部无啰音，心界向左明显扩大，HR108/ min，律齐，第一心音减低，心尖可闻及2/6级收缩期杂音，ESR 40mm/h，抗“O”阴性，CK360U，心电图示窦性心动过速，一度房室传导阻滞，心肌损害。本病例可初步诊断为
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