In 2013, a report from The Nero England Journal of Medicine showed that increased body weight is related to the death rate for all cancers. This is based on a study involving about 900,000 people, spanning many years. The study, started in 1992 by the American Cancer Society, included men and women from all 50 states. The youngest participants were 30 years old, and the '8verage age was 57. By December 2008, 24% of the participants had died, just a quarter of them from cancers. In analyzing the results, researchers attempted to take account of such potential factors as smoking drinking alcohol, taking aspirin and a wide variety of other factors that might otherwise affect the results. The results are clear the more you weigh, the greater your risk of dying of cancer will be (up to 52% higher for men and 62% for women). In men as well as women, the only cancers that did not have a strong connection with weight were lung cancer and-brain cancer. For women, the strongest correlation with weight was uterine cancer ,which is 6.5 times higher for women with a BMI(Body Mass Index)of 40 or more. For men, it was liver cancer, which is 4.5 times higher in most obese men. Smokers tend to be more successful in keeping weight off than non-smokers ,slightly reducing the risk ,But many of them don't have good lungs .Thus ,in another way ,they also face risks. As for why extra weight leads to excess cancer death rate ,there's no clear agreement .But the decrease in vitamin D in obese people seems a likely factor .Vitamin D is known to have a role in preventing cancer .Also, there is a simple fact that obesity makes the management of cancer more difficult .Although for now there is no simple answer to why obesity increases a person's cancer risk ,all we know for certain is that the risk is real. According to the passage, what can we learn about the study? A) There is a clear explanation concerning why obesity leads to more cancers. B) Generally speaking, women face fewer r18ks of dying of cancer than mem C) Women witha BMI of 40 dying of uterine cancer are more than other women. D) Smokers are still likely to face risks of dying of cancer though keeping weight off.
D
People are talking about the "new economy." It's very different from the "old economy". In the old economy, people travel to walk. They buy things in stores. They use the post office, the fax and the telephone to send information. They see people face-to-face at their jobs or in stores. People get information from newspapers, radio, television, books and libraries. In the new economy, people do business through the "net," which is a connection of millions of computers everywhere in the world. In the new economy, workers often work at home. They can get information online. They can communicate with employers and co-workers by e-mail. Businesses have "virtual stores". They are websites on which customers can see the products. Businesses can sell to customers anywhere in the world. In the new economy, people live a fast paced, convenient and colorful life. The whole world develops more quickly than before. But the new economy is a double-edge sword. Its disadvantage is also obvious. For example, the Internet has led to a huge increase in credit card cheating. Some illegal websites offer some cheap or banned goods or services. Online shoppers who enter their credit card information may never receive the goods they want to buy and their card information could even be for sale in an illegal website. So people in the new economy should be smarter and knowledgeable. "But the new economy is a double-edge sword " in the last passage means _ . A) The new economy is as sharp as a sword B) The new economy has advantages and disadvantages C) The new economy is better than the old economy D) Both the new economy and the old economy have disadvantages
B
Q: It was the summer of 1965. Deluca, then 17, visited Peter Buck, a family friend. Buck asked Deluca about his plan for the future. "I'm going to college, but I need a way to pay for it," Deluca recalls saying. "Buck said, 'you should open a sandwich shop.'" That afternoon, they agreed to be partners. And they set a goal: to open 32 stores in ten years. After doing some research, Buck wrote a check for $1,000. Deluca rented a storefront in Connecticut, and when they couldn't cover their startup costs, Buck kicked in another $1,000. But business didn't go smoothly as they expected. Deluca says, "After six months, we were doing poorly, but we didn't know how badly, because we didn't have any financial controls." All he and Buck knew was that their sales were lower than their costs. Deluca was managing the store and to the University of Bridgeport at the same time. Buck was working at his day job as a nuclear physicist in New York. They'd meet Monday evenings and brainstorm ideas for keeping the business running. "We convinced ourselves to open a second store. We figured we could tell the public, 'We are so successful; we are opening a second store.'" And they did--in the spring of 1966. Still, it was a lot of learning by trial and error. But the partners' learnasyougo approach turned out to be their greatest strength. Every Friday, Deluca would drive around and handdeliver the checks to pay their supplies. "It probably took me two and a half hours and it wasn't necessary but as a result, the suppliers got to know me very well, and the personal relationships established really helped out," Deluca says. And having a goal was also important. "There are so many problems that can get you down. You just have to keep working toward your goal," Deluca adds. Deluca ended up founding Subways Sandwich, the multimilliondollar restaurant chain. They decided to open a second store because they _ . A) had enough money to do it B) had succeeded in their business C) wished to meet the increasing demand of customers D) wanted to make believe that they were successful
A: D
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D