Article: If you thought taking vitamins would reduce the risk of lung cancer, think again. Researchers who studied 77,721 people said on Friday that people who took too much vitamin E,especially smokers,had a small but higher risk of developing lung cancer. They tracked the subjects'use of multi-vitamins,vitamin C and vitamin E to see if it offered protection from lung cancer.But they found that none of the vitamins was tied to a reduced risk. "If you could find some sort of magic pill--a pill you could take once a day to decrease your risk--that would be wonderful.But unfortunately.we didn't find that in our study,"lead researcher Christopher Slatore,of the University of Washington Seattle,said. The subjects of the study were followed for four years,and 521 developed lung cancer,the majority of them smokers or former smokers,Slatore's team reported in the American Journal of Respiratory and Critical Care Medicine. Among those in the study who developed lung cancer, the researchers saw a small increased risk related with vitamin E supplements in addition to the expected connections to smoking,family history and age. This added up to a 28 percent increased risk of developing lung cancer for those taking 400 mg of vitamin E supplements daily for 10 years,the researchers said. "For people--especially smokers--I suggest that they not take vitamin E(as a supplement) unless they have a very strong reason to take it." Slatore said. The idea that vitamin supplements are healthful,or at least not harmful.comes from the desire of many people to match the benefits of a healthful diet with a convenient pill,Tim Byers of the University of Colorado School of Medicine.wrote in an essay. Question: According to the passage,many people take vitamin supplements to Yes or no, is the answer "save the trouble of making a healthful diet"?
No

Article: A new system that scans customers' fingerprints and subtracts the grocery bill from their bank accounts has taken supermarkets in Germany to use the new system. "Almost a quarter of our customers pay with their fingers," said an employee at the headquarters. Edeka has tried the system at 70 of its supermarkets. It says it will introduce it at 200 others because customers like it. "At first we thought that only the young who really keep up with the latest technology would be interested, but we were wrong," said Stefan Sewoester from IT Werke. "Almost two-thirds of the people who use the system are 40 and older," he said. IT Werke, a computer company, is one of the pioneers of fingerprint payment software in Germany. It has helped about 150 shops, canteens and bars to put in the fingerprint scanning machines. Each costs about 2,000 euros. To sign up for the service, customers must have their fingerprints taken and leave their addresses and banking details with the shop. The shop then takes the cost of goods directly out of the customer's bank account. "It is especially a good thing for elderly people. Now they do not have to remember their pin to pay with their bank cards, or to scratch around for their glasses or cash." Sewoester said. The stores benefit from the system too. It saves more than time in the check-out line. It also cuts out the hidden costs of accepting electronic card payments. Question: Why do elderly people benefit much from the fingerprint machine? Yes or no, is the answer "They will spend less time on shopping.."?
No

Article: Traditional businessmen feel worried that growing ecommerce will reduce their share of the market. According to a survey, 90% of some people's purchases are made on the computer. As they find that by being able to go online and choose the things that they need to choose, and have them delivered right to their doorsteps, they could no longer be bothered with driving, the crowds, the noise of that, and they usually get a better selection. Cornell University Marketing Professor, MeLaughlin says traditional stores can keep their customers by offering goods like clothing, which customers may want to see and try on before purchasing, as well as items that are difficult to ship. He says some traditional stores are also pleasing customers with services that set up or repair computers and electronics. Traditional stores also offer a social experience that some shoppers enjoy. There is still a lot of emotion in the buying decision that takes place. Oftentimes, you need that last sense of "this is exactly what I want" before you part with money. And you can't always get that online. It's a rather cold process. As more and more people have Internet access and smart phones, online commerce is likely to continue its growth here in the United States and in other countries. Question: According to McLaughlin, some traditional stores are keeping customers by _ . Yes or no, is the answer "providing customers with extra services"?
No

Article: Fifa has announced a track by Pitbull and Jennifer Lopez as the official the me song for the 2014 World Cup in Brazil. We are one,which also features Brazilian singer Claudia Leitte,will be performed at the opening ceremony at the Arena de Sao Paulo on 12 June. The track will be released later this year in the lead up to the World Cup.It will also be included on the upcoming official 2014 Fifa WorldCup album. Pitbull said,"I truly believe that this great game and the power of music will help unify us,because we are best when we are one."The 33-year-old singer, also known as Mr.Worldwide,has had 11 top 10 tracks in the Official Singles Chart to date.His most recent single,"Timber which features Kesha,was the first number one of 2014. "I grew up in a house that loved football.so I am thrilled to be performing at the World Cup Opening Ceremonies, with Pitbull and Claudia Leitte,"said Jennifer Lopez."This is all amazing celebration of global unity,competition and the sport." The last Fifa World Cup song for the South Africa tournament in 2010 was Waka Waka by Shakira.The track peaked at number 21 in the Official Singles Chart and the video has been viewed almost 600 million times on YouTube. Talking about this year's track,Fifa General Secretary Jerome Valcke added,"In my many visits to this country I've seen and heard a lot about the great Brazilian music tradition and it gives me great pleasure to see a Brazilian artist at the heart of this song.I'm sure,like me, millions of football and music fans all over the world will be eagerly awaiting the song's release." Question: Which of the following is true about the song.We Are One? Yes or no, is the answer "Three singers will perform it to gether at the opening ceremony of the 2014 World Cup."?
Yes