Read the following article and select the best answer. Article: The 2ndWorld Cup Live Painting Competition Brief Introduction The 2ndYouth World Cup Live Painting Competition is a global charity event hosted by Canada Youth Arts Development Foundation and supported by UNICEF. It is a global painting Olympic of the world's children and youth, and also a global charity event aiming to help poor children worldwide. We don't have ready formulas, but we believe in action. The Youth World Cup Live Painting Competition aims to change things for the better. The competition will be a platform to raise awareness for the welfare of poor children. We hope that this annual competition and charity event will grow into an annual celebration of painting, the Olympic of cultural and artistic exchange. All participants are separated into four groups *Children Group 1 (Age 4-7) *Children Group 2 (Age 8-12) *Youth Group 1 (Age 13-17) *Youth Group 2 (Age 18-25) Main categories for this edition are *Friendship *Dream *Environmental Protection Tools Pen, pencil, oil, water color, any painting tools and materials are welcome. Size A3 size (43cm x 28cm) Entry fee There is no entry fee. Eligibility This competition is open to anyone worldwide aged 4-25 years old. Deadline June 30, 2014 Prize *The Committee will issue one First Award (Gold Medal), three Second Awards (Silver Medals), six Third Awards (Bronze Medals), and Best Innovation Award, Best Color Award, Best Structure Award, Best Method Award, Best Quality Award. *First Award will receive the Golden Cup and $500 CAD, Second Award--Silver Cup and $300 CAD, Third Award--Bronze Cup and $100 CAD. *All winners of the First Award, Second Award and Third Award from each group will have the opportunities to attend the final competition for live painting competition, which is to be held in Richmond Olympic Oval, Richmond, Canada on August 12th, 2014. All participants in the final competition will receive a certificate, which will be delivered directly from the Organizing Committee. Question: It can be known from the passage that _ . - there are no given themes for all the participants - participants must use special tools to paint their entries - the groups are divided by the age of the participants - the larger the painting is, the more welcomed it is
the groups are divided by the age of the participants

Read the following article and select the best answer. Article: A dog's tail can tell you a lot more than you might think. Is it wagging to the left or is it wagging to the right? "The direction of tail wagging does in fact matter,"said Giorgio Vallortigara,a professor at the University of Trento in Italy. Professor Vallortigara finds that the way the tail is wagging can tell you a lot about a dog's state of mind--whether you're a human or another dog. What's the difference between a left wag and a right wag?Professor Vallortigara and his colleagues have studied 43 dogs of various breeds -- German Shepherds,Beagles,Boxers,Border Collies and some mutts. They find that if a dog wags its tail to the left. it's feeling anxious or nervous. The reason could be an unfamiliar or dangerous situation,an unfamiliar person,or an unfamiliar and possibly threatening dog. But if the tail is wagging to the right,it means the dog is feeling relaxed and approachable. "The tail is a very important signal,"said Thomas Reimchen,a biologist at the University of Victoria in British Columbia, Canada. "There is a lot of visual information that dogs use when communicating with each other. " How did the scientists figure all this information out? They had the dogs in their study watch videotapes of other dogs. When the dog on the tape wagged its tail to the right,they say the other dogs remained calm and cool. But when the dog on the tape wagged its tail to the left,the other dogs got anxious. The researchers are still not exactly sure if the direction of tail wagging is something the dog does consciously. They suspect that it might be something the dog does without even thinking about it -- kind of like when you get goose bumps if something scares or startles you. They plan to do more research to get more information about what dogs are thinking and feeling while they're wagging. As Reimchen said,"I'm not going to be surprised if we find all sorts of really interesting processes that nobody has ever seen before. " Question: Professor Vallortigara's study focused on the relationship between _ . - a dog's state of mind and its owner's feeling - a dog's state of mind and the direction of its tail wagging - a dog's sense of direction and its state of mind - a dog's intention of tail wagging and its feeling
a dog's state of mind and the direction of its tail wagging

Q: Read the following article and select the best answer. Article: With the popularity of 3D movies over the past several years , there was no doubt that the technology would make its way into our homes, The question is: Is it really a technology that is going to stay with us , thus deserving an upgrade at this time? Many families have recently bought a new TV set, and the idea of changing it just to take advantage of a technology in its infancy will put many people off the idea. Then there are the additional costs that come along with a 3Dset from needing to get a Blu-ray player that can process the signal to purchasing enough glasses for the entire family to be able to watch a program at the same time. Another issue is that the glasses are expensive as well as complicated, and have also been known to cause headaches, none of which makes for a pleasant experience. While manufacturers are working towards glasses-free technology, it just isn't here yet, and it could be several years before it is commercially successful. That is one of main things that will keep 3D completely in the "fashion" zone for the time being . If the television manufacturers are willing to hold onto the idea until glasses-free choices are available--and they can reach a higher installed user base--this might very well catch on. Everyone needs to remember, however, that these are businesses, and they are in it to make money. If 3D isn't selling at the rate they are comfortable with, then they will dump it and move on to the next thing. Many homes are filled with products that didn't catch on rapidly and companies ended up leaving them with no support. Do you have an HD DVD player? Remember how the MiniDisc was supposed to replace the CD? For now, it's easy to see how 3D televisions could join this list of technologies. There is one _ to the 3D television problem: They have beautiful 2D images. Even if 3D goes away, you still have a great -looking screen and beautiful images. If you are in the market for a new TV and you can afford to drop the couple extra hundred dollars to buy one, you can view it as... Question: The examples of the HD DVD player and CD are to show _ . - they are not necessary - they are bound to be replaced - 3D TV might not be here to stay - 3D technology needs improving
A: 3D TV might not be here to stay