Read the following article and select the best answer. Article: The food we eat seems to have great effects on our health. Although science has made great steps in making food more fit to eat, it has, at the same time, made many foods unfit to eat. Some research has shown that perhaps eighty percent of all human illnesses are related to diet and forty percent of cancer is related to diet as well. Different cultures are subject to certain illnesses because of the food that is characteristic in these cultures. That food is related to illness is not a new discovery. In 1945, government researchers realized that nitrates and nitrites , commonly used to keep color in meats, and other food additives, caused cancer. Yet, these additives remain in our food, and it becomes more difficult all the time to know which things on the packaging labels of processed food are helpful or harmful. The additives which we eat are not all so direct. Farmers often give penicillin to cows and chick and because of this, penicillin has been found in the milk of treated cows. Sometimes similar drugs are given to animals not for medicinal purposes, but for financial reasons. The farmers are simply trying to fatten the animals in order to get a higher price on the market. Although the FDA has tried repeatedly to control these, the practices continue. Question: According to the passage, the FDA might be _ . - an organization which controls the safety of food - a producer which makes additives - a factory which processes food - a hospital which cures cancer
an organization which controls the safety of food

Read the following article and select the best answer. Article: More perhaps than any other European nation, the Swiss are accustomed to looking after foreign travelers. As early as the 18th century, wealthy French, Germans and Italians were treating the country as a amusement center while, in the 19th century, it became the major holiday playground for the British nobles. Today, it attracts visitors from all over the world. The Swiss are clear about the importance of tourism to their economy, which contributes about eight percent of Gross National Product, and helps the industry greatly. Managers of hotels the world over go to Switzerland to learn how to do the job, and a generally high standard can be expected from the great majority of the country's hotels, most of which are small and pride themselves on a personalized service. Public transport is the best in Europe. Both the Swiss Federal railways and the private railways are fully electrified, and the total network is made up of about 5000 kilometers of track. Under the Fly Baggage system passengers can check luggage in at 116 railway stations and have it automatically carried to their flight. The national highway system is equally well planned, and the mountain roads offer views of some of the country's most breathtaking scenery. Also serving the mountains is an effective system of railways and cable ways, while more than 160 passenger cars cross the lakes and rivers to and fro. Hiking in the mountains is equally popular with Swiss nationals and foreign visitors. For those who want to view the country from a height without having to climb the mountain themselves, it is always possible to take in the view from a balloon. Question: According to the passage, Switzerland is now often visited by _ . - wealthy French - rich Germans and Italians - noble British - people from various countries
people from various countries

Q: Read the following article and select the best answer. Article: Every few years, we buy an expensive new PC and love how fast it runs. Unavoidably though, it starts to slow down until eventually we are pulling our hair out waiting for it to do tasks. Why is this? It turns out the answer is quite simple and you don't even need to be "technical" to understand the causes and solutions. In most cases, the hardware you have is capable of being restored to its original function and kept in fast running condition with little effort. Spyware are software programs that are loaded on your computer without your permission. Most spyware and viruses get onto our computers through files that we download from the Internet or as attachments to emails. They tend to take up a lot of computing power and , as a result, will slow down your computer. The simple rule to follow is to never download any free software programs from companies you do not know and trust, especially screensavers, emoticons, and the like. In addition, you should never open any attachment to an email unless you are 100 percent certain you know and trust the sender. In addition, make sure you have a good anti-virus spyware removal software running at all times. Every time you load a program, your PC's software registry is updated with new instructions needed to operate that item. However, when the item is carried out, these instructions remain on your PC. Every time you run your computer it tries to execute these instructions but, because the related program can't be founded, it causes a registry error. Your PC is doing a lot more work than it should be and the result is a slower computer. One of the best ways to manage this is with a neat little tool from Support.com. You can now get a free working version of the software which will quickly scan your entire PC and identify all of the registry errors. The free version also scans for junk and checks your PC. It will deal with the first 100 errors for free, and if you have more to clean up, you can easily upgrade to the full version for just $29.95. Question: The PC starts working slower _ . - when the hardware is stored some information. - until we pull out our hair in the PC - when the hardware gets wrong - after the software are infected with problems
A: after the software are infected with problems

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: We know from the text that 3D TV _ . - is easy to operate - has been fully developed - has many products attached to it - has already replaced normal TV sets
has many products attached to it