Read the article and select the best answer. Article: Imagine having an idea, drawing it on paper, bringing it to a store and seeing it turned into a physical object. This is now possible with the help of 3D printers. Such machines were once used just by universities and big companies, but now, stores with 3D printing services are appearing around the United States. Bryan Jaycox and his wife opened The Build Shop LLC in Los Angeles two years ago. The store is filled with tools like a laser cutter, an industrial sewing machine and 3D printers. The Jaycoxs offer 3D printing classes and services for anyone who is interested. "I think 3D printing is going to be huge. It's going to have a huge effect on society as a whole." One of the students in a recent class was KiChong Tran. He plans to open a 3D printing business in Cambodia. 3D printing services are becoming available for American consumers. The UPS Store is a nationwide retailer ( ) that provides shipping, copying and other services. The UPS Store recently put 3D printers in three of its independently-owned stores. Burke Jones owns one of the stores in San Diego. "The demand has been amazing. It's been much more than I would have imagined." The UPS Store plans to add 3D printers in three more stores. At The UPS Store, the cost of the object depends on the amount of materials used. The store charges up to $95 an hour to design the object with computer software that creates a digital file to guide the printer. Mr. Jaycox predicts that within five years, 3D printing technology could become more popular. But KiChong Tran says even current technology can make a difference in a developing country like Cambodia. "With 3D printing, you can give them tools; you put it in their hands so they are responsible more for their own development and they learn skills beyond just learning English and becoming a tour guide or something like that or working at a bank; you can actually create things that give value to the world." He says it's not just in Cambodia but anywhere where there is a 3D printer that it can turn a good idea... Question: The purpose of the passage is to _ Options: A: attract consumers to buy 3D printers B: explain the importance of 3D printing C: introduce a new technique-3D printing D: describe the rapid development of technology
C

Read the article and select the best answer. Article: SeaWorld San Diego is one of the world's famous marine adventure parks with 200 acres of world-class shows, thrilling rides and unforgettable animal encounters. More than 80 million visitors have explored the mysteries of the sea here.and spent the day checking out all eleven shows including the performance of Shamu the killer whale. In between shows you can enjoy yourself on Shipwreck Rapids. When you find that the excitement has drained your energy you can take a break to watch Shamu close! Summer special SeaWorld San Diego 7-days pass Adults at Kid's Price! Unlimited admission to SeaWorld San Diego for up to 7 consecutive days from date of first use.(available through September 30, 2010) Adult (ages 13+) Gate Price $69.00 Your Price$56.50 Child (ages 3-12) Gate Price $59.00 Your Price $56.50 7-Day Pass FREE BONUS: SeaWorld San Diego The Go San Diego Card is your ticket to the best San Diego has to offer. For one price you can enter over 55 attractions - including the San Diego Zoo, The U.S.S. Midway, Legoland, Whale Watching Excursions, and much more. The Go Card is the only ticket you need, saving you up to 55% compared to buying individual admissions. Plus, enjoy VIP access to some of San Diego's top attractions.(available April 1, 2010 - March 31, 2011) Adult (ages 13+) Gate Price $284.00 Child (ages 3-12) Gate Price $210.00 Child's Ticket for Only $5.00 For nearly 50 years, SeaWorld Parks & Entertainment has been rescuing and rehabilitating animals in need. We also work to support conservation efforts around the world. It's our passion and our duty. We would like to invite you to be a part of it. Now through December 31, 2010, when U.S. residents purchase a full-price adult admission, children ages 3-12 receive a ticket to SeaWorld for only $5.00. (Limit of one $5.00 SeaWorld Cares child ticket with each adult ticket purchased - up to a maximum of 6 child tickets). If you require more child tickets, you'll need to purchase these from the 7-day child ticket listed above. 100% of the proceeds will be... Question: The purpose of the passage is _ . Options: A: to describe the beauty of SeaWorld San Diego B: to draw more visitors in the summer of 2010 C: to tell of the most exciting activities D: to introduce various tickets for children
B

Read the article and select the best answer. Article: Scratchy throats, stuffy noses and body aches all spell misery, but being able to tell if the cause is a cold or flu may make a difference in how long the misery lasts. The American Lung Association (ALA) has issued new guidelines on combating colds and the flu , and one of the keys is being able to quickly tell the two apart. That's because the prescription drugs available for the flu need to be taken soon after the illness sets in. As for colds, the sooner a person starts taking over-the-counter remedy, the sooner relief will come. The common cold and the flu are both caused by viruses. More than 200 viruses can cause cold symptoms, while the flu is caused by three viruses - flu A, B and C. There is no cure for either illness , but the flu can be prevented by the flu vaccine, which is, for most people, the best way to fight the flu, according to the ALA. But if the flu does strike, quick action can help. Although the flu and common cold have many similarities , there are some obvious signs to look for. Cold symptoms such as stuffy nose, runny nose and scratchy throat typically develop gradually, and adults and teens often do not get a fever. On the other hand, fever is one of the characteristic features of the flu for all ages. And in general, flu symptoms including fever and chills, sore throat and body aches come on suddenly and are more severe than cold symptoms. The ALA notes that it may be particularly difficult to tell when infants and preschool age children have the flu. It advises parents to call the doctor if their small children have flu-like symptoms. Both cold and flu symptoms can be eased with over-the-counter medications as well. However, children and teens with a cold or flu should not take aspirin for pain relief because of the risk of Reye syndrome ,a rare but serious condition of the liver and central nervous system. There is, of course, no vaccine for the common cold. But frequent hand washing and avoiding close contact with people who have colds can reduce the likelihood of catching one. Question: According to the author, knowing the cause of the misery will help _ . Options: A: shorten the duration of the illness B: the patient buy medicine over the counter C: the patient obtain cheaper prescription drugs D: prevent people from catching colds and the flu
A