Read the following article and select the best answer. Article: Humans and many other mammals have unusually efficient internal temperature regulating systems that automatically maintain stable core body temperatures in cold winters and warm summers. In addition, people have developed cultural patterns and technologies that help them adjust to extremes of temperature and humidity . In very cold climates, there is a constant danger of developing hypothermia , which is a life threatening drop in core body temperature to below normal levels. The normal temperature for humans is about 37.0degC. However, differences in persons and even the time of day can cause it to be as much as 6degC higher or lower in healthy individuals. It is also normal for core body temperature to be lower in elderly people. Hypothermia begins to occur when the core body temperature drops to 34.4degC. Below 29.4degC, the body cools more rapidly because its natural temperature regulating system usually fails. The rapid decline in core body temperature is likely to result in death. However, there have been rare cases in which people have been saved after their temperatures had dropped to 13.9-15.6degC. This happened in 1999 to a Swedish woman who was trapped under an ice sheet in freezing water for 80 minutes. She was found unconscious, not breathing, and her heart had stopped beating, yet she was eventually saved despite the fact that her temperature had dropped to 13.7degC. In extremely hot climates or as a result of uncontrollable infections, core body temperatures can rise to equally dangerous levels. This is hyperthermia. Life threatening hyperthermia typically starts in humans when their temperatures rise to 40.6-41.7degC. Only a few days at this extraordinarily high temperature level is likely to result in the worsening of internal organs and death. Question: What is the best title for the passage? - Surviving in an ice trap - Getting to know hypothermia - Adapting to climate extremes - Changing core body temperature
Adapting to climate extremes

Read the following article and select the best answer. Article: My interest in Chinese food started years a90, when l was a young reporter for the Washington Post. Our office wasn't far from Chinatown, where I found some very good Chinese restaurants. The first time I ever ate Chinese food I loved it. I noticed the fresh taste of the meat and vegetables. When I learned more about the food, I began to understand why it has this special feature. Many years ago, China had an energy crisis because it lost much of its wood due to over population and poor management of its forests. This loss was very bad for the country, of course, but it turned out to be very good for the food. Wood became very expensive and hard to get,so the Chinese had to either find a substitute for their valuable wood,or learn how to use it better. There weren't any substitutes so people found ways to economize. In order to economize in cookin9, they had to use very little wood. So they started cutting their meat and vegetables into small pieces before they put them in the hot oil.That way,the food cooked faster and they saved their fuel. The food prepared in this way kept its fresh flavorand it's this flavor that attracts people from other countries to the art of Chinese cooking. Question: It can be inferred from the text that before the energy crisis Chinese food _ . - was cooked in rather large pieces - was cooked in water but not oil - didn't taste good - didn't look fresh
didn't look fresh

Q: Read the following article and select the best answer. Article: Frank Woolworth was born in Rodman, New York, in 1852. His family were very poor farmers, and there was never enough to eat. Frank decided he did not want to be a farmer. He took a short business course, and went to work as a salesman in a large city. Woolworth realized he had a natural skill for showing goods to attract people's interest, but he soon learned something more important. One day his boss told him to sell some odds and ends ( ) for as much as he could get. Frank put all these things on one table with a sign which said FIVE CENTS EACH. People fought and pushed to buy the things and the table was soon cleared. Soon afterwards, Woolworth opened his own store, selling goods at five and ten cents. But he had another lesson to learn before he became successful. That is, if you want to make money by selling low-price goods, you have to buy them in large quantities directly from the factories. Once, for example, Woolworth went to Germany and placed an order for knives. The order was so large that the factory had to keep running 24 hours a day for a whole year. In this way, the price of the knives was cut down by half. By 1919, Woolworth had over 1000 stores in the US and Canada, and opened his first store in London. He made many millions and his name became famous throughout the world. He always runs his business according to strict rules, of which the most important was: "THE CUSTOMER IS ALWAYS RIGHT."www.ks5u.com Question: Frank took a short business course in order to _ . - earn more money for his family - learn something from a salesman - get away from the farm - get enough to eat.
A: get away from the farm

*Question*
Read the following article and select the best answer. Article: Every foreign student who has been accepted to study in this country must have a legal document called a visa from the prefix = st1 /United Statesgovernment. A visa permits a foreign citizen to travel to theUnited Statesand request permission to enter the country. The rules for getting a visa can be found on the State Department Web site. The address is unitedstatesvisas. gov. Unitedstatesvisas is all one word. Another State Department Web site for students from other countries is educationusa. gov. If you are requesting a visa for the first time, you may have to appear at the American Embassy in your country to talk to an official. Each student should communicate with the Embassy to find out if such an interview is needed and when it can take place. It is important to apply for the visa early. State Department officials say national security is the most important issue in deciding if a person will be permitted to enter the United States. Officials must find out if a student is on any list of people with possible links to terrorists. Embassies can not issue a visa more than ninety days before the start of the educational program in the United States. If you are a student studying in theUnited Statesfor the first time, you will not be permitted to enter the country more than thirty days before the start of your classes. Foreign students accepted at an American school will receive a document called a Certificate of Eligibility. The State Department says each student must enter the country using the certificate provided by the school he or she will be attending. It is a violation of the law to enter the country on one school's certificate but attend another school. You are permitted to stay in the United Stateson a student visa for the length of your period of study. That means you can stay as long as you are a full-time student. Your college or university will provide the government with reports about your education as long as you continue to study there. We will have more information about that next week. Question: If you are applying for a USstudent visa for the first time, you _ . - you may get your visa 30 days in advance - you may get your visa any time you like - you can't get your visa unless you have something to do with terrorists - can be given the visa 90 days ahead of time
**Answer**
you may get your visa 30 days in advance