Next time you feel the flu coming on, think twice before reaching for painkillers—they could do more【C1】______than good. With the flu season【C2】______way across Europe and North America, millions will be taking flu【C3】______, which commonly include painkillers. The general【C4】______advice in the UK and the US is to take painkillers. But although painkillers can make you feel better they also lower fever, which can make the virus【C5】______. The first analysis of the effect of this on the【C6】______shows that painkillers taken at current levels to【C7】______fevers could cause 2, 000 flu deaths each year in the US alone. Fever is thought to be a【C8】______against viruses, because many viruses find it hard to【C9】______above our normal 37 °C. Some studies have shown that lowering fever may【C10】______virus-related infections and increase the amount of virus we can【C11】______on to others. To find out what【C12】______this might have on a flu epidemic, David Earn and his colleagues【C13】______to a 1982 study which showed that ferrets, a【C14】______animal model for human flu produced more【C15】______flu virus if their fevers were lowered with painkillers. Earns team used these findings to estimate how much more virus people with【C16】______flu might produce if their fevers were【C17】______. With the help of a mathematical model, Earns team【C18】______their estimates to the number of people a year in the US who get flu,【C19】______fever and take the drugs. They found that painkillers as used in the US could be increasing the【C20】______of ordinary winter flu by up to 5 per cent.
【C1】
A．hurt
B．pain
C．harm
D．work

判断题[l] [?] [?] are called phonemes of the phoneme |l|.()

未分类题Eating healthily costs about $1.50 more per person daily, according to the most thorough review yet of the affordability of a healthy diet. 'For many low-income families, an【C1】______$1.50 daily is quite a lot,' says Mayuree Rao, 'It【C2】______to about $550 more per year per person, and that could be a real【C3】______to healthy eating.' Rao and her colleagues reached their【C4】______after analysing 27 studies from 10 high-income countries, comparing price【C5】______for healthy versus unhealthy ingredients and diets.【C6】______one study compared the cost of a diet rich in fruit and vegetables versus one that was【C7】______in them. Another compared prices of【C8】______healthy and less healthy items, such as wholegrain versus white bread. Individual items were【C9】______matched in price. Meats【C10】______the largest difference: healthier options cost an average of 29 cents per serving more than unhealthy options. 【C11】______this, comparisons of whole diets showed that healthier diets cost averagely $1.48 more per day. This shows that comparisons based on single ingredients dont tell the full【C12】______. 'It tells us that,【C13】______, it doesnt cost more to eat healthier based on one nutrient,' says Rao. 'But theres growing evidence that the【C14】______of foods in your diet【C15】______your disease risk more than any single nutrient, so we think our【C16】______finding that healthier diets cost about $1.50 more has the most public health【C17】______.' As to why healthier food has become more【C18】______Rao says that it may be because the food industry organizes itself and the types of food it produces to【C19】______its own economies of scale,【C20】______than whats best for consumers.【C1】A．availableB．adequateC．extraD．economical

未分类题According to Paragraph 3, which of the following sounds is the most powerful?A．McDonald's 'I'm Lovin' It' jingle.B．The sound of blowing open a door.C．The giggling sound of a baby.D．The hum of a vibrating cell phone.

判断题创新的第一步是模仿式创新，这一观点正确么?()

未分类题According to Paragraph 1, which of the following is true of Newtons Principia?A．Newton was motivated to write the Principia after he saw the apple fell.B．The Law of Universal Gravitation was originally included in the Prineipia.C．Newton began to form. the idea of the Principia when he was a college student.D．The Law of Universal Gravitation was formulated long before the Principia.

未分类题What is true about the scholars before the time of Newton?A．Some of them were convinced by astrology.B．They didn't know the laws of Nature apply to all planets.C．They played important roles in the development of astrology.D．Most of them found astrology incredible.

判断题积木式创新指的是创新需要整合各方面的优势资源，这个说法对么。()

未分类题According to Paragraph 4, which of the following is true of the trimming?A．The number of hypotheses would be decreased.B．The sample size would be finalized later on.C．The protocols would be the focus of discussion.D．In-home assessments would be prolonged.

判断题家庭条件好，就可以不为自己的职业做准备。()

未分类题The phrase 'break the impasse' (Para. 5) is closest to the meaning '_____'.A．avoid being attackedB．break the iceC．trigger hostilityD．draw attention

未分类题According to Dr. Walter Willett, healthy lifestyle. practices will most probably_____.A．reduce combined impactB．be modestly repeatedC．be simple common sensesD．make us live longer

未分类题We can infer from this text that the author is most probably a_____.A．hunterB．biologistC．journalistD．traveler

未分类题【C2】

未分类题【C17】

未分类题【C18】