Read the following article and select the best answer. Article: Mark Ramirez, a senior executive at AOL, could work in the comfortable leather chair, if he wanted. No, thanks. He prefers to stand most of the day at a desk raised above stomach level. "I've got my knees bent. I feel totally alive," he said. "It feels more natural to stand." In the past few years, standing has become the new sitting for 10 percent of AOL employees at the firm's Virginia branch. Part of a standing popularity is among accountants, programmers, telemarketers and other office workers across the nation. GeekDesk, a California firm that sells desks raised by electric motors, says sales will triple this year. Standers give various reasons for taking to their feet: It makes them feel more focused, prevents drowsiness , and makes them feel like a general even if they just push paper. (Former Defense Secretary Donald Rumsfels works standing up. So does novelist Philip Roth.) But unknown to them, a debate is spreading among ergonomics experts and public-health researchers about whether all office workers should be encouraged to stand--to save lives. Doctors point to surprising new research showing higher rates of diabetes, obesity, heart disease and even mortality among people who sit for long stretches. A study earlier this year in theAmerican Journal of Epidemiologyshowed that among 123,000 adults followed over 14 years, those who sat more than six hours a day were at least 18 percent more likely to die during the time period studied than those who sat less than three hours a day. "Every rock we turn over when it comes to sitting is astonishing," said Marc Hamilton, a leading researcher on inactivity physiology at the Pennington Biomedical Research Center in Louisiana. "Sitting is harmful. It's dangerous. We are on the cusp of a major revolution." He calls sitting "the new smoking". Not so fast, other experts say. Standing too much at work will cause more long-term back injuries. Incidences of varicose veins among women will increase. The heart will have to pump more. Hedge, the Cornell... Question: Which of the following is the best title of the passage? - Standing is not better than sitting - Standing more does no harm to people - Standing will promote the efficiency - More office workers take standing against sitting
More office workers take standing against sitting

Read the following article and select the best answer. Article: As you climb into the hill country, the roads get dustier and rougher, and fewer cars can be seen. Phonxay is one of the poorest districts of Laos, and many of its villages are only accessible by footpath. Our destination this hot morning is a concrete water tank that can be found just off the road. A UK organization helped to build it six years ago, and in the nearby village of Thapho, where clean drinking water is scarce, it has made a big difference. The tank feeds six taps which in turn give water to over 800 people---it has improved things for almost every family, from schoolchildren to grannies. But lately, we were told, the clean water supply has come under pressure from new arrivals, people who have come down from the hill areas, and there are concerns that there will not be enough clean water to go round. There are also serious worries about resources in Laos. The Chinese are building a 400km railway link, which could transform the landlocked country. About 150,000 Chinese workers will be involved. What will this do to local clean water supplies? How will the workers be fed? The vast majority of Laotians live on farms. But with foreign investors wanting to buy up land, local people will have to be moved to make room for them. Heavily dependent on both foreign aid and foreign investment, Laos still falls well behind its neighbours, although its economy has grown at about 6% a year in the last decade. Its biggest economic problem is the lack of locally trained skilled workforce. But there are reasons to be hopeful for the future. Laos is beautiful, and foreign tourism continues to grow: fortunately so far the fast-food chains and coffee bars common elsewhere are nowhere to be seen. Although all local media are government-run, the Internet is not controlled and the BBC and CNN are available to those with satellite dishes. The government has also achieved impressive results in rural development, with communities benefiting not just from cleaner water but the construction of new schools and regular visits... Question: What is putting pressure on the local supply of clean water? - Dust from the road is making the water dirtier. - There are too many taps accessing the water. - The population of the area is growing fast. - The coming summer will dry up rivers and lakes.
The population of the area is growing fast.

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Read the following article and select the best answer. Article: When the Farnsworth family moved to their new farm in 1919, eleven-year-old Philo was surprised to find it wired for electricity. This unusual circumstance contributed to his fate -- to become an important inventor of the twentieth century. By thirteen, Farnsworth had become a self-taught electrical engineer. He was able to fix the farm's generator when none of the adults could. In 1922, he read an article about a new idea of John Baird, a Scottish scientist, who had been working with the cathode ray tube for the transmission of electronic pictures and wanted to attempt it himself. Farnsworth studied everything he could find on the subject. Although many older engineers with money backers were already developing television, Farnsworth made a bold decision -- he was going to perfect a working model of it before anybody else. In college, Farnsworth continued his research with cathode ray and vacuum tubes, but the death of his father, the only money maker in the family, forced him to give up this research and find a job. His first job was for George Everson, with whom Farnsworth discussed his dream of television. While acknowledging the achievements of those who came before, Farnsworth thought that he could get closer. Everson agreed to risk $6,000 for the research. Backers came in 1927 to see the first American television, one year after Baird's. They were astonished to see the image of a single white line resolve itself on the screen before them, and agreed that this new invention was worth putting money into. In 1930, Farnsworth won a patent for his all-electronic TV. By the time he died, he had earned over 300 American and foreign patents for electronic and mechanical devices. Question: What difficulty did Farnsworth meet when he first began his research on the television? - His parents didn't support his work. - He didn't have enough knowledge in this field. - He didn't have enough money for his research. - No one was interested in this research.
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He didn't have enough money for his research.