题目内容
Imagine eating everything delicious you want - with none of the fat. That would be great, wouldn’t it New "fake fat" products appeared on stone shelves in the United States recently, but not everyone is happy about it. Makers of the products, which contain a compound called olestra, say food manufacturers can now eliminate fat from certain foods. Critics, however, say the new compound can rob the body of essential vitamins and nutrients (营养物) and can also cause unpleasant side effects in some people. So it’s up to consumers to decide whether the new fat-free products taste good enough to keep eating. Chemists discovered olestra in the late 1960s, when they were searching for a fat that could be digested by infants more easily. Instead of finding the desired fat, the researchers created a fat that can’t be digested at all. Normally, special chemical in the intestines (肠) "grab" molecules of regular fat and break them down so they can be used by the body. A molecule of regular fat is made up of three molecules of substances called fatty acids. The fatty acids are absorbed by the intestines and bring with them the essential vitamins A, D, E and K. when fat molecules are present in the intestines with any of those vitamins, the vitamins attach to the molecules and are carded into the bloodstream. Olestra, which is made from six to eight molecules of fatty acids, is too large for the intestines to absorb. It just slides through the intestines without being broken down. Manufacturers say it’s that ability to slide unchanged through the intestines that makes olestra so valuable as a fat substitute. It provides consumers with the taste of regular fat without any bad effects on the body. But critics say olestra can prevent vitamins A, D, E and K from being absorbed. It can also prevent the absorption of carotenoids (类胡萝卜素), compounds that may reduce the risk of cancer, heart disease, etc. Manufacturers are adding vitamins A, D, E and K as well as carotenoids to their products now. Even so, some nutritionists are still concerned that people might eat unlimited amounts of food mad with the fat substitute without worrying about how many calories they are consuming. Why are nutritionists concerned about adding vitamins to olestra
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1 NEW DELHI, India (CNN) - Indian Prime Minister Atal Behari Vajpayee’s ruling Bharatiya Janata Party has conceded defeat in parliamentary elections in a stunning voting upset that should see the return of the Nehru-Gandhi dynasty to power.2 Vajpayee - who called the election six months early - is also expected to resign later Thursday, BJP President Venkaiah Naldu said.3 The move follows a stronger than anticipated showing from the main Congress party headed by Italian born-Sonia Gandhi.4 Though the party won’t be able to form a majority, the stage has now been set for Gandhi to become the next prime minister in the world’s biggest democracy.5 Counting is continuing but unofficial trends by major TV stations and early results have Congress leading the BJP and likely to win over 200 seats in the 543-member lower house, or Lok Sabha.6 The immediate result of the vote count is likely to be a hung parliament, with no party gaining a clear majority of 272 seats.7 Senior Congress officials say they are confident they will be able to form a government with the help of left-leaning parties, CNN New Delhi Bureau Chief Satinder Bindra reports.8 "We have not got the mandate of the people, we have decided to sit in the opposition," BJP President Naidu announced Thursday.9 Gandhi, 57, is the widow of Rajiv who was assassinated in 1991 by Sri Lanka’s Tamil Tiger rebels. Rajiv is the son of former prime minister Indira Gandhi and grandson of India’s first premier, Jawaharlal Nehru.10 India’s last female leader was Indira Gandhi, who was assassinated while in power in 1984.11 Gandhi, and her popular children Rahul and Priyanka, have revitalized the Congress party, leading it to defy opinion polls that only weeks ago suggested they had no hope of faring well in this election. Vajpayee called the early election in a seemingly unassailable position - boosted by a booming economy and also a strengthening peace process with neighbor and arch-rival, Pakistan.12 Congress party officials said they would keep pursuing a peace dialogue with Pakistan, while Islamabad - which had been hopeful the BJP-led ruling coalition would be reelected - says it is hopeful talks will continue.13 The 79-year-old Vajpayee had sought a fourth term as prime minister, arguing he had earned another five years in office because he had turned the economy around.14 Early opinion polls had indicated that Vajpayee s ruling Hindu nationalist-led coalition would easily win a new five-year term.15 In contrast, the Congress party and its allies have been championing the nation’s poor, which the party says has been left out of India’s new found prosperity.16 While Indians have traditionally voted on party, caste and religious lines, this election has been fought on bread-and-butter issues such as jobs, prosperity, water and electricity. A hung parliament is a parliament ______.
患者，男性，65岁，有慢性支气管炎病史10年，术前需复查的项目不包括（）
Imagine eating everything delicious you want - with none of the fat. That would be great, wouldn’t it New "fake fat" products appeared on stone shelves in the United States recently, but not everyone is happy about it. Makers of the products, which contain a compound called olestra, say food manufacturers can now eliminate fat from certain foods. Critics, however, say the new compound can rob the body of essential vitamins and nutrients (营养物) and can also cause unpleasant side effects in some people. So it’s up to consumers to decide whether the new fat-free products taste good enough to keep eating. Chemists discovered olestra in the late 1960s, when they were searching for a fat that could be digested by infants more easily. Instead of finding the desired fat, the researchers created a fat that can’t be digested at all. Normally, special chemical in the intestines (肠) "grab" molecules of regular fat and break them down so they can be used by the body. A molecule of regular fat is made up of three molecules of substances called fatty acids. The fatty acids are absorbed by the intestines and bring with them the essential vitamins A, D, E and K. when fat molecules are present in the intestines with any of those vitamins, the vitamins attach to the molecules and are carded into the bloodstream. Olestra, which is made from six to eight molecules of fatty acids, is too large for the intestines to absorb. It just slides through the intestines without being broken down. Manufacturers say it’s that ability to slide unchanged through the intestines that makes olestra so valuable as a fat substitute. It provides consumers with the taste of regular fat without any bad effects on the body. But critics say olestra can prevent vitamins A, D, E and K from being absorbed. It can also prevent the absorption of carotenoids (类胡萝卜素), compounds that may reduce the risk of cancer, heart disease, etc. Manufacturers are adding vitamins A, D, E and K as well as carotenoids to their products now. Even so, some nutritionists are still concerned that people might eat unlimited amounts of food mad with the fat substitute without worrying about how many calories they are consuming. Olestra is different from ordinary fats in that ______.
以下是某市2003~2005年2~9月的固定资产投资额情况： 从上图可知，三年中投资规模同比增长速度最快的是( )。
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