I'm taking a test and have to guess the right answer to the question after the article. Article: BEIJING - A research team led by Chinese scientists have discovered dietary modulation of gut microbiota can alleviate both genetic and simple obesity in children. The findings of the team, led by Zhao Liping with Shanghai Jiaotong University, Yin Aihua with the Guangdong province children's hospital, and Tang Huiru with Chinese Academy of Sciences, have been published on EBioMedicine, a renowned medical journal co-sponsored by Cell and The Lancet in July. The team identified bacterial genomes specifically for producing obesity-related metabolites , and said an improved gut microbiota can significantly help to treat genetic obesity such as Prader-Willi Syndrome (PWS). Beginning in childhood, PWS affected kids develop an insatiable appetite, leading to chronic overeating and obesity. The scientists used a diet therapy with beneficial gut bacteria on trial patients and found considerable _ appetite, weight loss and improved health conditions on the patients. The paper concluded dysbiosis of gut microbiota is highly related with both genetic and simple obesity in children, implicating dietary modulation of gut microbiota a potentially effective treatment method. Question: Which of the following factors contributes to child obesity ? Options: A: dietary modulation of gut microbiota B: beneficial gut bacteria C: an improved gut microbiota D: dysbiosis of gut microbiota
D

I'm taking a test and have to guess the right answer to the question after the article. Article: The oldest and most common source of renewaBle energy known to man, Biomass is one of the most important forms energy production in the United States and elsewhere. Since such a wide variety of Biomass materials is everywhere ---- from trees and grasses to agricultural and city ---- life wastes ----Biomass promises to play a continuing role in providing power and heat for millions of people around the world. According to the Union of Concerned Scientists(UCS), Biomass is a kind of renewaBle energy source that produces no carBon dioxide , Because the energy it contains comes from the sun. When plant matter is Burned, it gives off the sun's energy. In this way, Biomass serves as a sort of natural Battery for storing the sun's energy. As long as Biomass is produced continuously ----with only as much grown as is used--- the "Battery" lasts forever. According to the Energy Information Administration, Biomass has Been one of the leading renewaBle energy sources in the United States for several years running through 2007, making up Between 0.5 and 0.9 percent of the nation's total electricity supply. In 2008----although the numBers aren't all in yet----wind power proBaBly took over first place Because of the rapid development of wind farms across the country. Producing power from Biomass helps reduce some 11 million tons of carBon dioxide each year. Some homeowners also try to make their own heat By using Biomass materials. Such practice may save homeowner's money, But it also produces a lot of pollution. So, the Best way is to encourage power plants to use it. Question: Where does the text proBaBly come from? Options: A: A research plan. B: A science magazine C: A Book review. D: A Business report.
B

I'm taking a test and have to guess the right answer to the question after the article. Article: Being green is everywhere these days, whether it is in the school, factory or anywhere on the Internet. This is because our planet is in danger, losing resources, polluting resources and destroying ecosystems . Different species are dying because we can't take care of our home. Now ask yourself why you don't want a green healthier lifestyle and to save animals. Keep _ in mind as you read on. There are many ways to be green, first of all, everyone should recycle; it's something easy and helps our planet in many ways. All you'd have to do is put recycling in recycling and garbage in garbage. Another popular thing is to try your best not to drive a car. Sometimes you can just walk, bike, or take a subway. This ensures that our air won't be polluted, which in turn helps our lungs and everything else on our planet. Next thing is saving energy. We can do this by not using too much heat or air conditioning in summer or winter. It's not preferable because it's hard, but you can try and put your washing machine on cold whenever possible and try to keep electronics out of the rubbish. What's more, remember to stop drinking from plastic bottles because plastic can only be used once and if used many times, it will become unhealthy. So you'd better use a glass or buy a reusable water bottle. The last and most important thing is, spread this news to the world and tell them what's happening in our world. I've only listed a small part of the endless possibilities to save this world. The least you can do is do the simple ones. Question: How many ways to be green are mentioned in the passage? Options: A: Two. B: Three. C: Four. D: Five.
D

I'm taking a test and have to guess the right answer to the question after the article. Article: The snow has paralysed transport in China during the country's most important vacation period, the celebration of the Chinese New Year. Not only have transport delays hindered personal trips, but they have also slowed the delivery of fresh produce to markets. Consequently, in Zhengzhou, the capital city of the Henan province, tomato prices have doubled, and the cost of 47 other vegetables has increased by 36%, as reported by local media at the end of January. According to an inside PR source, "wholesalers in Beijing were quoted as saying that only about 20% of the usual fresh vegetable supplies were reaching the city." As an Asian country with a diet based on fresh produce, the shortage of vegetables and the rise in prices is not only affecting fresh food producers, but also the final consumers. In terms of production, this is the worst snow disaster to hit China in the last 50 years, affecting a total of 9.4 million hectares of farmland in the country, according to a report published on 4 February 2008 by Feng Tao of Xinhua News, at the Chinese government website. Most of the crops devastated by the frost are located in the middle and lower reaches of the Yangtze River, the traditional natural border between North and South China. Chen Xiwen, Director of the Office of the Central Leading Group on Rural Work, pointed out at the end of last week that "the blizzard disaster in the south has had a severe impact on winter crops, and the impact on fresh vegetables could be catastrophic in certain areas", as stated in the Xinhua News report. The Chinese government has been quick to take extreme measures. The Chinese Ministry of Agriculture (MOA) has sent 13 teams of experts to 8 of the areas most seriously affected by the harsh weather. The aim of this initiative is to provide farmers with technical assistance to minimize their losses. Question: The Chinese Ministry of Agriculture (MOA) has sent 13 teams of experts to 8 of the areas to _ . Options: A: help the farmers plant crops B: give money to the farmers C: give directions to the farmers with their technic(;). D: deliver crops for the farmers.
C