Article: Su Hua is studying at Cambridge, UK. She has bought a bicycle and is worried about security. Her friend, Kate, found this article and sent it to her. www.zxxk.com Introduction A lot of crime is against bicycles. About 150,000 bicycles are stolen every year and most are never found. You can prevent this happening by following a few careful steps. Basic Security Do not leave your bicycle in out-of-the-way places. Always lock your bicycle when you leave. Secure it to lampposts or trees. Take off smaller parts and take them with you, for example lights and saddles . Locks Get a good lock. There are many different types in the shop. Buy one that has been tested against attack. Ask for a recommendation from a bike shop. Marking Security marking your bike can act as a deterrent to a thief. It can also help the police find your bicycle. It should be clearly written and include your postcode and your house or flat number. This will provide a simple way to identify your bicycle. Registration There are a number of companies who will mark your bicycle for you. They will then put your registration number and personal details on their computer database. Then if your bicycle is found it will be easy to contact you. Finally Keep a record of the bicycle yourself: its make, model and registration number. You can even take a photograph of it, this will prove the bicycle belongs to you. Question: The main purpose of this article is _ . Yes or no, is the answer "to suggest ways of keeping your bicycle safe"?
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Article: Growing your own fruit and vegetables is one of the best things in the world. It is very good for your health and also brings happiness to you. To be a successful fruit-and-vegetable grower, check out these tips: *A family affair Get all family members to take part in growing. Children will learn where food comes from, and they may like to have their own little field. *Size doesn't matter You can work in any place you like, not just in a common vegetable garden. Grow fruit and vegetables in a window box, or use your flowerbed to grow vegetables and beautiful flowers together. *The natural way If you want to grow foods organically, you can't use sprays that would harm children, pets and wildlife. You should work with nature rather than against it. Growing your own food doesn't take up too much time and costs little. A few seeds and some basic tools will be OK. Second-hand tools can often be both cheap and good to use. Question: The author writes this passage to _ . Yes or no, is the answer "encourage people to grow their own food"?
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Q: Article: The businessman was deep in debt and could see no way out. Creditors were closing in on him. Suppliers were demanding payment. He sat on the park bench, head in hands, wondering if anything could save his company from bankruptcy . Suddenly an old man appeared before him. "I can see that something is troubling you." he said. After listening to the businessman, the old man said: "I believe I can help you." He asked the man his name, wrote out a check , and pushed it into his hand saying: "Take this money. Meet me here exactly one year from today, and you can pay me back at that time." Then he turned and disappeared as quickly as he had come. The businessman saw in his hand a check for $500,000, signed by John D. Rockefeller, then one of the richest men in the world! "I can settle all my debts in a moment!" he realized. But instead, the man decided to put the uncashed check in his safe, just knowing it would give him the strength to work out a way to save his business. With renewed optimism, he made better deals and extended terms of payment. He closed several big deals. Within a few months, he was out of debt and making money once again. Exactly one year later, he returned to the park with the uncashed check. At the agreed-upon time, the old man appeared. But just as the businessman was about to hand back the check and share his success story, a nurse came running up and grabbed the old man. "I'm so glad I caught him!" she cried. "I hope he hasn't been bothering you. He's always escaping from the rest home and telling people he's John D. Rockefeller." And she led the old man away by the arm. The businessman stood there, still and shocked. All year long he'd been wheeling and dealing, buying and selling, believing that he had half a million dollars behind him. Suddenly he realized that it wasn't the money, real or imagined, that had turned his life around. It was his newfound self-confidence that had given him the power to achieve anything he wanted to. Question: Why did the businessman put the uncashed check in his safe? Yes or no, is the answer "He felt secure against further difficulties with the check as a backup."?
A: No

Article: On July 1 at exactly 7:59:59, Bejing time, the world' s atomic clocks will pause for a single second, or, more precisely, change to the unusual time of 7:59:60. The addition of a leap second , is to keep our clocks in time with the slowing of Earth' s rotation and astronomical time as measured by the sun. Just one extra second could affect the way computers and websites work, however. When the last leap second was added back in 2012, the community website Reddit crashed. For Reddit, the problem was that a Linux system got confused when it checked the network time and found an extra second. Speaking to Wired about the problem back in 2012, Linux creator Linus Torvalds commented:"Almost every time we have a leap second, we find something. It' s really annoying, because it' s code that is almost never used, and thus not tested by users under their normal conditions. " Companies have thought of their own solutions, and Google' s"leap smear"may be the best- known example. As company engineer Christopher Pascoe explains in a blog post, companies usually try to turn back the clocks by one second at the end of the day so that they play that second again. However, Pascoe believes this creates problems. He asked:"Does email that comes in during that second get stored correctly?"Google has a solution: Cut the extra second into milliseconds and then put these tiny amounts of time into the system throughout the day."This means that when it became time to add an extra second at midnight."Says Pascoe."Our clocks have already taken this into account over the course of the day." For many companies without Google' s money, however, the leap second will likely still cause some crashes. Question: How do companies usually deal with the problem of the extra second? Yes or no, is the answer "By turning the clocks back by one second at the end of the day."?
No