Read the following article and select the best answer. Article: Inland waters may be grouped into two general classes: standing waters and flowing waters. As is often the case, the boundary between these two classes is not sharp and clear. A pond is an example of standing water. But most ponds are fed by springs or brooks and most have an outlet. Thus some current of changing water flows through them. On the other hand, a river is an example of flowing water. In some places, however, a river may have such a slow current that it is very difficult to detect. Standing inland waters differ in size, in age, and in many _ environmental characteristics. They range in size from roadside puddles to the Caspian Sea. Puddles may last for only a few days or weeks; ponds, for a few hundred to a thousand years. In general, lakes are older, though the waters of some tropical "lakes" disappear completely during each dry season. Standing waters vary from very shallow to very deep, from clear to muddy, from fresh to salty. In flowing waters we roughly distinguish between brooks, creeks, and rivers. The size and age of flowing waters are unimportant. Speed of flow, clearness, oxygen content, and other chemical characteristics are used by scientists in studying flowing-water ecosystems. Question: According to the passage, which of the following characteristics of flowing waters is unimportant? - Clarity. - Size. - Speed of flow. - Oxygen content.
Size.

Read the following article and select the best answer. Article: With the growth of the European Union and increased globalisation, English is increasingly the lingua franc a in European businesses, and those who speak it have become the elite of the workforce. In the past, only a few specialists in a company were needed to communicate with foreign businesses.However, in these days of multinational companies, where workers are required to communicate with other employees from several countries, a common language is essential and English has become the logical choice. Nowadays, even blue-collar workers in many companies are required to speak English.For example, just over three years ago, a Dutch company.United Pan-European Communications (UPC), was contracted to build a TV studio in Amsterdam.The job involved many electricians--more than the company could find in the Netherlands.There were plenty of qualified electricians in nearby France and Belgium, but the American and Dutch executives of UPC wanted everyone on the job to speak and understand the same language.So, the UPC hired British electricians and flew them to Amsterdam every Monday, accommodating them in hotels all over the city, and flying them home on Friday evenings. Increasingly, workers who can speak English earn salaries 25-35% higher than those who can' t.They are also eligible for a wider range of high-level jobs. The problem is that, while the ability to speak English is fast becoming essential for getting a good job, there is a shortage of people who can speak it.According to a recent European Commission report, only about 41% of continental Europeans can speak English, and only 29% speak it well enough to carry on a conversation.Many companies are solving this problem by setting up English language schools within the workplace.English language schools all over Europe are expanding at a huge rate, and governments are looking at ways to improve English tuition in schools. One result of this modem urge to learn English is that a generation gap is appearing. According to a European Union study, 67% of... Question: In European companies, workers who speak English _ . - find it easy to carry on a conversation - have an advantage over other workers - must be white-collar workers - travel to many different countries
have an advantage over other workers

Q: Read the following article and select the best answer. Article: Do you sometimes argue about what seems to you to be simple fact? Do you argue whether it's cold outdoors or whether the car in front of you is going faster than the speed limit? If you get into such arguments, try to think about the story about the six blind men and the elephant. The first blind man who felt the elephant's trunk said it was like a snake. The second who felt the elephant's side said it was like a wall, while the third said it was like a spear as he touched the animal's tusk. The fourth, who got hold of the elephant's tail insisted that it was like a rope. The fifth man said it looked like a tree as he put his arms around one of the elephant's legs. The sixth, who was tall and got hold of the elephant's ears, said it was like a huge fan. Each man's idea of the animal came from his own experience. So if someone disagrees with you about a "simple fact", it's often because his experience in the matter is different from yours. To see how hard it is for even one person to make up his mind about a "simple fact", try this simple experiment. Get three large bowls. Put ice water in one. Put hot water in the second. Put lukewarm water in the third. Now put your left hand in the ice water. Put your right hand in the hot water. After thirty seconds, put both hands in the lukewarm water. Your right hand will tell you the water is cold. Your left hand will tell you it's hot! Question: The main idea of this passage is_. - people often judge something according to his own experience - people often agree about simple facts - it's hard for a person to make up his mind about a simple fact - don't care too much about simple facts
A: people often judge something according to his own experience

Q: Read the following article and select the best answer. Article: Everybody knows that colors are connected with certain feelings. For example, why do some people paint the walls of their rooms yellow and others pink? The same is true in stores. They want us to feel something when we look at their products. Green, for example, tries to show the quality of a product: how good it is for us or for our environment. It also suggests that the product is healthier, has less fat and maybe fewer calories. Red, on the other hand is an aggressive color that is often used for packaging food. Red wants us to become hungry or thirsty. Purple is a kind of color that is often seen as royal. It indicates that it is something special. Producers use purple to show that something is of good quality. Blue is not very often found in food packaging because there are not very many foods that have a blue color. Colors can also have different meaning in different cultures and countries. For example, while the color white is used in many Western countries to represent purity and innocence, it is seen as a symbol of mourning in many Eastern countries. The Egyptian pharaohs wore white crowns. A white sale is a sale of sheets, towels, and other bed and bath items. A white flag is the universal symbol for truce . A white elephant is a rare, pale elephant sacred to the people of India, Thailand, Burma, and Sri Lanka. In these countries, something that is a white elephant is either a possession that costs more than it is worth to keep or an item that the owner doesn't want but can't get rid of. Consumers are aware that certain foods must have certain colors. When Pepsi brought out a crystal clear cola in 1992, it thought that consumers would buy it because clear meant pure and healthy. After a few months Pepsi found out that a cola had to be dark-colored. Crystal Pepsi failed and the company pulled it off the market. Advertising professionals often need to look at a product through the consumers' eyes when choosing a color. The right packaging colors can truly improve the sales of a product but choosing... Question: What would be the best title for the passage? - Colors in advertising - Colors in food packaging - Our everyday life and colors - Foods in different colors
A: Colors in food packaging