You get anxious if there's no wi-fi in the hotel or mobile phone signal up the mountain. You feel upset if your phone is getting low on power and you secretly worry things will go wrong at work if you're not there. All these can be called “always on” stress caused by smart phone addiction.

    For some people, smart phones have set them free from the nine-to-five work. Flexible working has given them more control over their working lives and enabled them to spend more time with their friends and families. For many others though, smart phones have become cruel masters in their pockets, never allowing them to turn them off and relax.

    Pittsburgh-based developer Kevin Holesh was worried about how much he was ignoring his family and friends in favor of his iPhone. So he developed an app — Moment — to monitor his usage. The app enables users to see how much time they're spending on the device and set up warnings if the usage limits are broken. “Moment's goal is to promote balance in your life,” his website explains. “Some time on your phone, some time off it enjoying your loving family and friends around you.”

    Dr. Christine Grant, an occupational psychologist at Coventry University, said, “The effects of this ‘always on' culture are that your mind is never resting, and you're not giving your body time to recover, so you're always stressed. And the more tired and stressed we get, the more mistakes we make. Physical and mental health can suffer.”

    And as the number of connected smart phones is increasing, so is the amount of data. This is leading to a sort of decision paralysis (瘫痪) and is creating more stress in the workplace because people have to receive a broader range of data and communications which are often difficult to manage. “It actually makes it more difficult to make decisions and many do less because they're controlled by it all and feel they can never escape the office,” said Dr. Christine Grant.

    China has the highest adoption rate in the world for technology-enabled payment systems, according to a report released on Wednesday. The report, from the market research firm Nielsen, is based on a survey of 13,000 respondents in 26 countries.

    The survey showed that 86 percent of Chinese respondents said they paid for online purchases during the past six months via digital payment systems compared with a global average of just 43 percent.

    "Chinese consumers have more payment choices for products and services than ever while digital payments will continue to win over more Chinese consumers due to its convenient nature," said Kiki Fan, managing director of Nielsen China.

    The increasingly popular payment method is part of the rapidly evolving purchasing behavior of Chinese consumers. About 98 percent of the respondents in China, the world's largest e-commerce market, said they had made purchases online.

    The majority of them still make online purchases via computers, but the number of those who use mobile devices to make purchases is growing fast and is significantly higher than the average in other surveyed countries.

    At 71 percent, food-related businesses topped the list of purchases made via smart phones while event ticket purchases stood at 51 percent.

    The rising use of digital payments has attracted numerous players to the Chinese market.

    Apple Inc launched its contactless payment system Apple Pay in the Chinese mainland last month. It allows users of the iPhone 6 or more advanced versions, certain iPads and Apple Watches to pay by their devices in bricks-and-mortar stores.

    Apple's rival Samsung Electronics Co Ltd is expected to bring its own mobile payment service to China in mid-March—Sam-sung Pay.

    China's Internet giants Alibaba Group Holding Ltd and Tencent Holdings Ltd have already taken about 90 percent of the mobile payment market, but industry observers said the competition is just about to start.

根据短文内容，选择最佳答案，并将选定答案的字母标号填在题前括号内。

    A news release (释放，发布）is a tool of communication，through which information is passed to even the farthest end of the world.It keeps us well informed of the happenings of the world which would otherwise remain unknown.

    When writing a news release，keep in mind that the media receive hundreds of releases every day.Try to follow these guidelines：Keep it short and professional.Come up with a catchy headline that will grasp someone's attention.Sometimes the title will take more time to come up with than writing the release.That's okay－the headline could be critical for getting an event covered!

    Cover the 5 W's in your first paragraph.Those are who you are; what you are doing；where，when you are doing；why you are doing it，which help us understand the details about the event.Besides，any opinions in the news release should be put in quotations from your designated spokesperson.Include things that the media finds newsworthy，which is the most essential.

    Make the time on your news release at least half an hour later than the time you have told activists to show up at an event.This will ensure that activists are prepared and in place by the time the media arrive.

    Choose a spokesperson for the event who can be quoted in the release and will be available for calls at that number the day before the event.

    Have someone proof the release for spelling，grammar and content (determine whether what you are trying to relay is clear and right)．Sometimes the person who writes the release may not notice mistakes that a fresh pair of eyes will catch.

    Accuracy is the last but not least important in terms of your content and the location and time that you tell the media.If you do make a mistake，it is critical that you call and notify the media of the correction.

    If Frida Kahlo（1907-1954） is today one of the best-known and most popular figures of 20th-century, Mexican art, it is undoubtedly because of her personality and the originality（独创性）of a body of works. Her work is, above all, the expression of a real life－a tragic and stormy life, one that challenged all conventions. The mere mention of her name excites enthusiasm and admiration, but her work is rarely exhibited, and has not been shown in France for fifteen years. The selection to go on show at the Musee de L'Orangerie includes major works by the artist, with masterpieces from the Museo Dolores Olmedo.

    The life and work of Frida Kahlo cannot be separated from those of her companion Diego Rivera（1886-1957）. Together they became figures of legend, and both have a place in the pantheon of 20th-century Mexican artists. Famous for his large wall paintings, Rivera's easel paintings, drawings and prints, which form a large part of his artistic production, are less well-known to the public in Europe. The exhibition aims to trace his artistic career from the early Cubist images, revealing his links with the Paris artists whose works are a key element in the Orangerie collections, to the paintings that established him as the founder of the 20th-century school of Mexican art. His travels throughout Europe influenced his vision and his skills without ever distancing him from his roots, thus confirming his place in history as the founder of the nationalist school.

    The exhibition devoted to the legendary couple Diego Rivera and Frida Kahlo presents their works together, as if to confirm the impossibility of their divorce that was in fact finalized（定下来）but reconsidered after just one year apart. It also gives us a better view of their respective artistic worlds, so different and yet so complementary（互补的）, through the deep-rooted attachment they shared to their country.

    The morning of March 2, 2012, was a busy one for the students in Mrs. Goodknight's class in Henryville, Indiana. There was morning meeting with poems to read, jokes to share, and tests to prepare for. "It was just an ordinary day," says student Lyric Darling, 12.

    At noon, while students played basketball under a sunny sky, a huge tornado (龙卷风) was forming 50 miles away. Around 2:25 p.m. 20 minutes before school was supposed to let out, a huge tornado touched down in Fredericksburg, 20 miles away. As word spread, parents rushed to the school. Teachers rushed to get kids onto buses or into waiting cars. By 2:45, the skies were darkening.

    "I was crying," says Lyric. "All around me, kids were crying." Two buses returned to the school with students whose parents had not been home. Teachers brought the kids to the office, where they all took cover under desks. Suddenly the power went out. And then the tornado attacked the school, filled with wood and trees and glass. The tornado was over the school for less than one minute. In that time, it almost completely destroyed the school. Teachers were about to lead the group out of the office when a second tornado was upon them. When it finally ended, the group made its way out of the building.

    Over the next few hours, parents arrived, overjoyed to find their children. The next day, it was clear: All of Henryville's people were safe.

    There were so many sad and frightening stories. Some students saw the tornado with their own eyes. Some lost their homes. But many described how the community (社区) came together to help and support each other. "You learn what's important," Mrs. Goodknight says.

Guide to Stockholm University Library

    Our library offers different types of studying places and provides a good studying environment.

Zones

    The library is divided into different zones. The upper floor is a quiet zone with over a thousand places for silent reading, and places where you can sit and work with your own computer. The reading places consist mostly of tables and chairs. The ground floor is the zone where you can talk. Here you can find sofas and armchairs for group work.

Computers

    You can use your own computer to connect to the wi-fi specially prepared for notebook computers; you can also use library computers, which contain the most commonly used applications, such as Microsoft Office. They are situated in the area known as the Experimental Field on the ground floor.

Group-study places

    If you want to discuss freely without disturbing others, you can book a study room or sit at a table on the ground floor. Some study rooms are for 2～3 people and others can hold up to 6～8 people. All rooms are marked on the library maps.

    There are 40 group-study rooms that must be booked via the website. To book, you need an active University account and a valid University card. You can use a room three hours per day, nine hours at most per week.

    Storage of Study Material

    The library has lockers for students to store course literature. When you have obtained at least 40 credits, you may rent a locker and pay 400 SEK for a year's rental period.

    Rules to be Followed

    Mobile phone conversations are not permitted anywhere in the library. Keep your phone on silent as if you were in a lecture and exit the library if you need to receive calls.

    Please note that food and fruit are forbidden in the library, but you are allowed to have drinks and sweets with you.