I'm taking a test and have to guess the right answer to the question after the article. Article: When it's 10:15 in New York, it's 9:15 in Salt Lake City, and 7:15 in San Francisco - isn't it? This consistent and orderly time system, based on a grid of time zones, seems so natural that people rarely give it a moment's thought. So you may find it surprising to learn that prior to the late 1800s each community established its own time - by looking at the sun. When the sun shone directly overhead in Washington, D.C., for example, it was 12:00 noon there; up the road in Philadelphia, however, it was 12:07, and in Boston it was 12:24. To measure time with accuracy, it is necessary to move the clock about one minute for every twelve miles of distance; so according to "sun time" your pocket watch would be slightly incorrect if you ventured only a few miles down the road. It was not until the advent of widespread railroad travel that a need arose for regularized time. At one point over 300 local times were honored within the country, making it literally impossible for trains to arrive consistently on time everywhere. As a result, in 1883 the continental, United States was divided into four time longitude. The standardization resulting from this system proved so helpful that in 1884 the International Meridian Conference applied the same procedure to establish time zones around the world. Thus, if it is 11:07 p.m. in Tuscaloosa, Alabama, a little simple research will quickly determine that in Kuala Lumpur, Malaysia, it is 9:07 A.M. - and not 9:15. Question: The distance between Washington, D.C., and Philadelphia must be_. Options: A: more than 75 miles B: more than 150 miles C: more than 200 miles D: more than 300 miles
A
I'm taking a test and have to guess the right answer to the question after the article. Article: Elderly women who eat foods higher in potassium are less likely to have strokes and die than women who eat less potassium-rich foods, according to new research in the American Heart Association. "Previous studies have shown that potassium consumption may lower blood pressure. But whether potassium intake could prevent stroke or death wasn't clear," said Smoller, professor of the department of population health at Albert Einstein College of Medicine, Bronx, NY. Researchers studied 90,137 women, aged from 50 to 79 for an average 11 years. They looked at how much potassium the women consumed, as well as if they had strokes, including ischemic strokes , or died during the study period. Women in the study were stroke-free at the start and their average dietary potassium intake was 2,611 mg/day. Results of this study are based on potassium from food, not supplements. The researchers found: Women who ate the most potassium were 12 percent less likely to suffer stroke in general and 16 percent less likely to suffer an ischemic stroke than women who ate the least. Women who ate the most potassium were 10 percent less likely to die than those who ate the least. Among women who did not have high blood pressure, those who ate the most potassium had a 27 percent lower ischemic stroke risk and 21 perc ent reduced risk for all stroke types, compared to women who ate the least potassium in their daily diets. Among women with high blood pressure, those who ate the most potassium had a lower risk of death, but potassium intake did not lower their stroke risk. "Our findings suggest that women need to eat more p otassium-rich foods. You won't find high potassium in junk food. Some foods rich in potassium include white and sweet potatoes, bananas and white beans." The U.S. Department of Agriculture recommends that women eat at least 4,700 mg of potassium daily. "Only 2.8 percent of women in our study met or went beyond this level. The World Health Organization's daily potassium recommendation for women is lower, at 3,510... Question: What conclusion can be drawn from the research findings? Options: A: Increasing potassium is definitely a good idea for all elderly women. B: Elderly women with high blood pressure benefit more from potassium. C: Potassium intake is more beneficial to those without high blood pressure. D: There was not any association between potassium intake and ischemic strokes.
C
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I'm taking a test and have to guess the right answer to the question after the article. Article: Years ago a John Hopkin's professor gave a group of graduate students this task: Go to the slums . Take 200 boys, between the ages of 12 and 16, and research into their background and environment. Then predict their chances for the future. The students, after consulting social statistics, talking to the boys, and compiling much data, concluded that 90 percent of the boys would spend some time in prison. Twentyfive years later another group of graduate students was given the job of testing the prediction. They went back to the same area. Some of the boys--by then men--were still there, a few had died, some had moved away, but they got in touch with 180 of the original 200. They found that only four of the group had ever been sent to prison. Why was it that these men, who had lived in a breeding place of crime, had such a surprisingly good record? The researchers were continually told: "Well, there was a teacher..." They pressed further, and found that in 75 percent of the cases it was the same woman. The researchers went to this teacher, now living in a home for retired teachers. How had she exerted this remarkable influence over that group of children? Could she give them any reason why these boys should have remembered her? "No," she said, "no I really couldn't." And then, thinking back over the years, she said amusingly, more to herself than to her questioners: "I loved those boys." Question: What conclusion can we draw from the story? Options: A: Love can work miracles. B: Like teacher, like pupil. C: Adversity leads to prosperity. D: Nothing is difficult to the man who will try.
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A