单选题Every office worker hates meetings.But its a strange sort of hate，similar to the hatred of Londoners for the Northern Line，or New Yorkers for tourists who walk too slowly：the dislike is real，yet

单选题. Cocoa contains chemicals called flavanols (黄烷醇) that may help reduce the risk of strokes and heart attacks by lowering blood pressure and bad cholesterol levels and improving the body's use of insulin (胰岛素). Washington chocolate producer Steve Kumar said that is one reason dark chocolate is increasingly popular among his customers. "A lot of people are attracted by dark chocolate because they just decide they love it, and they also have been reading all about the health benefits of dark chocolate," said Kumar. But those benefits have not been confirmed by studies involving large numbers of people. Also, during the production of chocolate, many flavanoids are destroyed, while sugar and fats are added to contribute to flavor. Scientists now want to learn the benefits of flavanols in their pure form. They plan a four-year study of 18,000 adults, who will take pills of pure cocoa flavanols, in what is being called the largest test of its kind. Jo-Ann Manson, of the Brigham and Women's Hospital in Boston, is the lead researcher. "This pill of cocoa flavanols will avoid having the calories and the sugar and the saturated fat found in chocolate," said Manson. The pills also won't have any taste. Participants, divided in two groups, will take two identical pills a day. One group's pills will contain flavanols, while the others will get placebo (安慰剂) pills. "The amount of chocolate that it would take in order to have this amount of cocoa flavanols would be more than ten times the amount that people would ordinarily eat," said Manson. Whatever the outcome of the study, Kumar said he's not worried about his business. "People like the experience of actually biting into a piece of chocolate, whatever their favorites are," he said. The flavanol benefits test is still in the early stage, so scientists are not sure when the participants will be handed their first chocolate pills.16. What chemical in cocoa may do good to the heart according to the passage? ______

单选题《复合题被拆开情况》 Remote work is about more than just working from home—it means working differently. Organizations should reconsider the appropriateness of their performance evaluation procedures in light o

单选题. Questions 8 to 11 are based on the conversation you have just heard.1.

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单选题. Questions 12 to 15 are based on the conversation you have just heard.5.

单选题The human face is a remarkable piece of work.The astonishing variety of facial features helps people 26_____ each other and is crucial to the formation of complex societies.So is the faces abilit

单选题. Questions 23 to 25 are based on the passage you have just heard.1.

单选题. Questions 8 to 11 are based on the conversation you have just heard.1.

单选题Mounting evidence shows that behavioral-activation BA therapy is just as effective as cognitive-behavioral therapy CBT in treating depression.Unlike CBT，BA is an outside-in 26_____ in which therapis

单选题《复合题被拆开情况》 According to recent United States Department of AgricultureUSDA projections, the country will see a sharp drop in meat consumption this year. Americans are expected to eat 12 percent less m

单选题. PepsiCo is to spend billions of dollars to develop drinks and snacks and reformulate existing ones with lower sugar, salt and fat, as consumers demand healthier options and regulatory pressure intensifies amid an obesity epidemic (流行病). The maker of Mountain Dew and Gatorade has been one of the earlier movers in the industry to offer products with reduced levels of unhealthy ingredients—PepsiCo claims a packet of its chips now contains less salt than a slice of white bread. However, its new 10-year plan makes clear it believes it still has a long way to go. Shifting eating habits, including a sharp drop in consumption of sparkling drinks, have forced radical change on the industry. But those shifts have yet to be reflected in record obesity levels, which stand at 36.5% overall in the US. Indra Nooyi, PepsiCo chairman, said the plan to make its products healthier was important for the company's growth. But on the subject of obesity, she pointed out that consumers' lifestyles have changed significantly, with many people being more sedentary (久坐不动的) not least because more time is spent in front of computers. She said PepsiCo's contribution was to produce healthier snacks that still tasted good. "Society has to change its habits," she added. "We can't do much to alter sedentary lifestyles, but we can provide consumers with great-tasting products, low in salt, sugar and fat. In the past we had to have a taste trade-off. But we're breaking that trade-off." PepsiCo's plan for its foods and drinks is based on guidelines from the World Health Organisation, which last week backed using taxes on sparkling drinks to reduce sugar consumption. Initiatives also include efforts to reduce its environmental impact, water consumption and materials used in packaging by 2025. PepsiCo did not say exactly how much it planned to invest to reach its goals. However, Dr Mehmood Khan, chief scientific officer, said the company had doubled research and development spending in the past five years and was "committed to sustaining investment", adding that companies cannot cost-cut their way to increasing sales. PepsiCo's research and development budget in 2015 was $754 million.1. Why is PepsiCo making a policy change? ______

单选题. Questions 8 to 11 are based on the conversation you have just heard.1.

单选题1.