user: Article: Discover the beautiful, silent, white world or Antarctica on the holidays of a life-time.Head South to Buenos Aires and then transfer to the world's most southern city, Ushuaia.From there, it's about 1,000 kilometers on a special icebreaker ship to the freezing temperature of Antarctica. Getting off the ship and taking your first step onto the ice, you will imagine what it is like to be an explorer.Meet penguins  sitting on their eggs, or see an Antarctic seal that lives all the year round on the ice.But do not get closer than five meters to any animal, in case you frighten it or make it angry. The friendly crew of the ship will look after you as you explore the ice continent. We promise you fantastic meals and a comfortable bed -- you sleep in a four-person cabin -- as well as many special treats.If you don't think it is cold enough, try the ''polar plunge" -- jump into a special hole dug in the ice and dip your head under the water.You can then jump into a hot bath and if you succeed we will give you a certificate. After you wake up for the first time in the Antarctica you will understand why everybody who goes there falls in love with the place.The scenery is different every day because the sea ice is always moving. Our ships travel to Antarctica from November to March -- phone today and book your dream holiday! Question: If you want to get a certificate, you have to  _  . Yes or no, is the answer "try the "polar plunge""?
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Article: A Bite of China Season Two(<< >> ) is coming! The program is shown at 9:00 on CCTV-1 every Friday night from April 18 to June 6, 2014. There are altogether eight episodes  , all about history andculture of food, eating and cooking in China. The directors spent one year visiting more than 150 different parts of China. More than 300 types of food are covered in the documentary. As an old Chinese saying goes, _ . It plays an important role in our daily life, and the rich food culture is also one of the most important parts of Chinese culture.A Bite of China Season Twowants to show the joys and sadness of ordinary   Chinese in changing times through food. A Bite of China Season Onewas shown on CCTV in 2012. It attracted more than 100 million viewers. It is all about food, while the second season cares more about the relationship between the people and the food. For example, the first episode shows a young man spent four hours climbing a 40-metre-high tree to get something nice for his brother. The show reminds viewers of their homes and the tastes of childhood. One Weibo user wrote, "A Bite o f China Season Twomakes me have so many words to say. It makes me think of my parents and my grandmother. I haven't been home for a long time, so I have decided to go back in a few days." The show uses food as a window to introduce China to the world. Viewers can see how Chinese people love life by loving food. Anyone who wants to know more about Chinese culture and Chinese society   should have a bite of the program. Question: How many types of food are covered in this program? Yes or no, is the answer "More than 300."?
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Article: Do successful businessmen need an office? Increasingly the answer seems to be no. Chris Ward, author of the book Out of Office explains how President Barack Obama's first inauguration  speech was written by 27-year-old Jon Favreau sitting in Starbucks ; how Richard Tait, creator of Cranium, started the board game in a coffee shop; how Michael Acton Smith invented the children's virtual world Moshi Monsters in his local cafe Nero; and how JK Rowling, the novelist behind Harry Potter, believes a cafe is the best place to write. It is a convincing view, and for basic start-ups it makes much more sense to work from home and public spaces such as cafes than renting an expensive office. Offices are hard to find, costly to decorate and involve much tiring administration. Moreover, by staying independent you avoid the misery  of a daily commute , which for many is the worst part of a job. Thanks to mobile communications, WiFi  and cloud storage, together with the increasing heavy-duty equipment such as photocopiers, fax machines and desktop PCs, the traditional office is becoming redundant  for many sorts of organizations and workers. Of course, factory managers, surgeons, chefs and industrial chemists are still tied to specialist locations. But many of us---from software engineers and copywriters to architects and fashion designers---can operate almost anywhere. That freedom, and a willingness to adapt, can make one's career more enjoyable and, sometimes, more efficient. Question: Which of the following careers is tied to special locations? Yes or no, is the answer "Surgeons."?
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Article: Working the night shift a few nights a month can do more than leave your eyes bleary-eyed ,suggests a study on Wednesday.     It just might increase your risk of color1ectal cancer .Nurses who worked the night shift at least three times a month for t5 years or more were 35%more likely to develop that type of cancer than nurses who never worked nights,Harvard University researchers report in the Journal of the National Cancer Institute.     The finding,from the ongoing Nurses Health Study,is the first to link night shift work with a higher risk of color1ectal cancer,expected to kill 57,100 Americans this, according to the American Cancer Society.Another research,including a report out of the Nurses Health Study, has suggested that working night shifts increases women's breast cancer risk.     The researchers asked 78,586 nurses whether they had ever worked three or more night shifts a month.The nurses indicated whether they had done so for less than 15 years or 15 years or more.The scientists followed the women to see who developed color1ectal cancer.     Researchers believe that lowered levels of melatonin might increase night-shift workers' cancer risk.Melatonin levels usually reach the highest point in the middle of the night. Turn on the lights,though,and  _ dropped measurably in just 10 minutes,says Richard Stevens a cancer epidemiologist at the University of Connecticut who did not take part in the new study.After two weeks of continuous nightly exposure to light,humans experience a sharp drop in melatonin production,Nurses Health Study researchers write.    In the lab,melatonin appears to stop tumor growth.Other studies suggest that color1ectal cancer patients have lower blood levels of melatonin than healthy people,the authors write.However,that could be a result of the disease,not a cause of it.Stevens says. Question: Which of the following plays an important part in causing cancers for nurses working night shifts? Yes or no, is the answer "The exposure to light"?


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