Read the following article and select the best answer. Article: More and more birds are flying to settle at Qinghai Lake, one of the highest inland lakes in China, thanks to the protection efforts of local governments. Covering an area of over 4,000 square kilometers, Qinghai Lake is also the country's biggest salt-water lake. Located in Northwest China's Qinghai Province, the lake is famous for the two islands at its northwest point--Cormorant Island and Egg Island. The two islands have plenty of floating grass and various schools of fish, offering rich food sources for birds. The islands have become a paradise for different kinds of groups of birds and have been called 'Bird Islands'. Each March and April, when ice and snow covering the Qinghai-Tibet Plateau starts to melt, over 20 kinds of birds fly to the Bird Islands to lay eggs. During the months, flocks of birds cover the whole sky over the islands and birds eggs can be found everywhere. Visitors can hear the singing of birds from miles away. These have become a world famous symbol of the lake. To protect this paradise for birds and support calls for ecological protection, China set up the Qinghai Lake Natural Protection Zone at the end of 1997. Meanwhile, the State has pointed out the Bird Islands and Spring Bay of the Qinghai Lake as central protection zones. Inspection officials and management employees often patrol the lake, improving local residents' knowledge of related laws and spreading knowledge about animal protection to visitors. They are making great efforts to call on people to love and protect the birds. At the same time, they have built special fences around the island area, to prevent wolves, foxes and other carnivorous animals, as well as illegal hunters from breaking up the birds' nest-building, egg-laying and breeding. As a result, more and more birds are coming to the islands for sheltering and breeding. Question: The birds feed on _ according to the passage. - floating fish and various grasses - grass moving on the water surface and different kinds of fish - salt water and plenty of grains - corn from the local farmers
grass moving on the water surface and different kinds of fish

Read the following article and select the best answer. Article: A lot of management training each year for Circle K Corporation, a national chain of convenience stores. Among the topics we address in our course is the retention of quality employees-a real challenge to managers when you consider the pay scale in the service industry. During these discussions, I ask the participants , "What has caused you to stay long enough to become a manager?" Some time back a new manager took the question and slowly, with her voice almost breaking, said, "It was a $19 baseball glove." Cynthia told the group that she originally took a Circle K clerk job as an interim position while she looked for something better. On her second or third day behind the counter, she received a phone call from her nine-year-old son, Jessie. He needed a baseball glove for Little League. She explained that as a single mother, money was very tight, and her first check would have to go for paying bills. Perhaps she could buy his baseball glove with her second or third check. When Cynthia arrived for work the next morning, Patricia, the store manager, asked her to come to the small room in the back of the store that served as an office. Cynthia wondered if she had done something wrong or left some part of her job incomplete from the day before. She was concerned and confused. Patricia handed her a box. "I overheard you talking to your son yesterday," she said, "and I know that it is hard to explain things to kids. This is a baseball glove for Jessie because he may not understand how important he is, even though you have to pay bills before you can buy gloves. You know we can't pay good people like you as much as we would like to; but we do care, and I want you to know you are important to us." The thoughtfulness, empathy and love of this convenience store manager demonstrates vividly that people remember more how much an employer cares than how much the employer pays. An important lesson for the price of a Little League baseball glove. Question: The story told in this passage tells us that employees care about _ . - only how large a pay they can get - love from the managing people rather than only money - if their children could be properly taken care of - what position they can be offered
love from the managing people rather than only money

Read the following article and select the best answer. Article: Maybe you've just invented something better than the iPhone or a solar-powered car. You don't want anyone to steal your design. What should you do? Patent it! Patents are the best way to get credit for your work and help others continue advancing in that field. Here's what you need to know. A patent gives you the right to an invention. The patent protects its owner, which means the invention can't be copied or sold without their agreement. In exchange, the owner must reveal information about the invention. This contributes knowledge that helps other inventors improve on their own research. A patent usually lasts about 20 years. The first step to getting a patent is the application. The person applying must name the invention, explain its use and describe it clearly. The invention must be practical and contain some new characteristic -- something that hasn't been seen or used before. But not everything "new" can be patented. Many countries don't allow patents on things like new concepts, scientific theories, medical procedures or substances already found in nature. You may not be able to see patents, but they're connected to nearly everything. There are patents on things you use every day, like plastic, medicine and your computer. There are patents on things that are unavailable on the market, too. Apple is well-known for its patents on potential products, such as the "iBike" or the "iKey". Of course there are also patents on inventions like this. Take the anti-eating face mask for example. This _ locks around your head with a metal cage covering your mouth. You can breathe and speak, but you can't eat! Although many patented inventions can be failures, there's plenty of room for success. So if you have a cool invention, try to patent it. Question: We can infer that Apple's iBike is _ . - a popular product - a mere new concept - a famous brand in the world - a practical bike on the market
a mere new concept