- Câu hỏi 113859:
Read the text and choose the best answer.
The first two decades of this century were dominated by the microbe hunters. These hunters had tracked down one after another of the microbes responsible for the most dreaded scourges of many centuries: tuberculosis, cholera, diphtheria. But there remained some terrible diseases for which no microbe could be incriminated: scurvy, pellagra, rickets, beriberi. Then it was discovered that these diseases were caused by the lack of vitamins, a trace substance in the diet. The diseases could be prevented or cured by consuming foods that contained the vitamins. And so in the decades of the 1920's and 1930's, nutrition became a science and the vitamin hunters replaced the microbe hunters.
In the 1940's and 1950's, biochemists strived to learn why each of the vitamins was essential for health. They discovered that key enzymes in metabolism depend on one or another of the vitamins as coenzymes to perform the chemistry that provides cells with energy for growth and function. Now, these enzyme hunters occupied center stage.
How do vitamins influence health?
A. They are broken down by cells to produce energy.
B. They are necessary for some enzymes to function.
C. They protect the body from microbes
D. They keep food from spoiling.
- Câu hỏi 113861:
Read the text and choose the best answer.
The first two decades of this century were dominated by the microbe hunters. These hunters had tracked down one after another of the microbes responsible for the most dreaded scourges of many centuries: tuberculosis, cholera, diphtheria. But there remained some terrible diseases for which no microbe could be incriminated: scurvy, pellagra, rickets, beriberi. Then it was discovered that these diseases were caused by the lack of vitamins, a trace substance in the diet. The diseases could be prevented or cured by consuming foods that contained the vitamins. And so in the decades of the 1920's and 1930's, nutrition became a science and the vitamin hunters replaced the microbe hunters.
Which of the following can be cured by a change in diet?
A. Cholera
B. Cystic fibrosis
C. Pellagra
D. Tuberculosis
- Câu hỏi 113862:
Read the text and choose the best answer.
You are aware that the enzyme hunters have been replaced by a new breed of hunters who are tracking genes-the blueprints for each of the enzymes-and are discovering the defective genes that cause inherited diseases-diabetes, cystic fibrosis. These gene hunters, or genetic engineers, use recombinant DNA technology to identify and clone genes and introduce them into bacterial cells and plants to create factories for the massive production of hormones and vaccines for medicine and for better crops for agriculture. Biotechnology has become a multibillion-dollar industry.
The word "them" refers to
A. hormones
B. genes
C. gene hunters or genetic engineers
D. cells and plants
- Câu hỏi 113865:
Read the article and choose the correct answer, A, B, C or D.
Bramley College now has full electronic information resources in the College Library to help you in your studies. On CD-ROM in the library we have about fifty databases, including many statistical sources. Want to know the average rainfall in Tokyo or the biggest export earner of Vanuatu? It's easy to find out. Whether you are in the School of Business or the School of Art Design, it's all here for you.
You can conduct your own CD-ROM search for no charge, and you can print out your results on the library printers using your library photocopying card. Alternatively, you can download your results to disk, again for no charge, but bring your own formatted floppy disk or CD-ROM. If you are not sure how to conduct a search for yourself, library staff can do it for you, but we charge $20 for this service, no matter how long or how short a time it takes.
All library workstations have broadband access to the Internet, so you can find the web-based information you need quickly and easily. If you are unfamiliar with using the Internet, help is available in several ways. You can start with the online tutorial Netstart; just click on the Netstart icon the Main Menu. The tutorial will take you through the basic steps to using the Internet, any time convenient to you. If you prefer, ask one of the librarians for internet advice (best at quiet times between 9.00am and 11.30 am weekdays) or attend one of the introductory group sessions that are held in the first two weeks of each term. Sign your name on the list on the library Bulletin Board to guarantee a place, as they are very popular.
A word of warning: demand for access to library workstations is very high, so you are strongly advised to book a workstation, and we have to limit your use to a maximum of one hour at any one time. Make your booking (for which you will receive a receipt) at the Information Desk at the enquiry desks in the Media Services Area (Level 1). Also, use of the computers is limited to Bramley students only, so you may be asked to produce your Student Identification Card to make a booking, or while using the workstations.
If library staff search for information on CD-ROM, students pay
A. a fee based on actual costs.
B. No fee
C. $20
D. a fee dependent on the time taken.
- Câu hỏi 113866:
Read the text and choose the best answer.
The first two decades of this century were dominated by the microbe hunters. These hunters had tracked down one after another of the microbes responsible for the most dreaded scourges of many centuries: tuberculosis, cholera, diphtheria. But there remained some terrible diseases for which no microbe could be incriminated: scurvy, pellagra, rickets, beriberi. Then it was discovered that these diseases were caused by the lack of vitamins, a trace substance in the diet. The diseases could be prevented or cured by consuming foods that contained the vitamins. And so in the decades of the 1920's and 1930's, nutrition became a science and the vitamin hunters replaced the microbe hunters.
The word "which" refers to
A. microbe
B. cholera
C. diseases
D. diphtheria
- Câu hỏi 113874:
Read the text and decide that the statement is TRUE (T), FALSE (F) or NOT GIVEN (NG).
When was the last time you saw a frog? Chances are, if you live in a city, you have not seen one for some time. Even in wet areas once teeming with frogs and toads, it is becoming less and less easy to find those slimy, hopping and sometimes poisonous members of the animal kingdom. All over the world, even in remote jungles on the far side of the globe, frogs are losing the ecological battle for survival, and biologists are at a loss to explain their demise. Are amphibians simply over-sensitive to changes in the ecosystem? Could their rapid decline in numbers be signalling some coming environmental disaster for us all?
This frightening scenario is in part the consequence of a dramatic increase over the last quarter century in the development of once natural areas of wet marshland; home not only to frogs but to all manner of wildlife. Yet, there are no obvious reasons why certain frog species are disappearing from rainforests in the Southern Hemisphere which are barely touched by human hand. The mystery is unsett1ing to say the least, for it is known that amphibian species are extremely sensitive to environmental variations in temperature and moisture levels. The danger is that planet Earth might not only lose a vital link in the ecological food chain (frogs keep populations of otherwise pestilent insects at manageable levels), but we might be increasing our output of air pollutants to levels that may have already become irreversible. Frogs could be inadvertently warning us of a catastrophe.
Frogs are important in the ecosystem because they control pests.
- Câu hỏi 113875:
Read the text and choose the best answer.
Western people rely on technical and mechanical solutions in everything they do. Refrigerators preserve their food, washing machines clean their underwear and computers are supposed to solve all their problems. When they are ill, they rely on the surgeon’s knife. If their hearts are running down, then they must be repaired, if they cannot be repaired, they should be replaced, just as an old car sometimes gets a new engine. But up to now we have had a shortage of donors to give their hearts, to keep one person alive, another donor had to die.
Nowadays there is more and more talk about using monkeys. Every monkey has a near-human heart, and humans have always been over careful in respecting the lives and well-being of other animals. This includes the life and well-being of other humans. Therefore, in the early years of the 22nd century - It was told the mass killings of monkeys may occur. We’ll need to use their hearts for human consumption.
Monkeys, on the whole, are happier creatures than their near relatives, Homo sapiens, or man. They know fear, of course, and they face real dangers, but they are also more intelligent than us. They create no unnecessary dangers for themselves, they run no businesses, chase no money, are unimpressed by gold – that utterly useless metal, and they do not care at all about hell or evil spirits. I have a vague feeling that it is not monkeys’ hearts that we ought to implant in ourselves, but monkeys’ brains.
The author says that monkeys….
A. people will careless about other human beings
B. Monkeys will become extinct
C. Monkey hearts will be used in transplant operations
D. Monkey hearts will form part of our diet
- Câu hỏi 113876:
Read the text and choose the best answer.
One of the most renowned Spanish architects of all time was Antoni Gaudi. Gaudi's emergence as one of 's preeminent artists at the end of the nineteenth century marked a milestone in the art world.
Gaudi's popularity helped to bring about the acceptance and rebirth of the Catalan language, which had been banned during the literature and art. Gaudi shares his Catalonian background with two other famous Spanish artists, Pablo Picasso and Miro. The diverse ethnic background of the region greatly influenced the work of Picasso and Miro, as well as Gaudi. Thus, their works were a combination of an old history and an active, vivid imaginary world. This has sometimes been referred to as the “Catalan Mind.” Yet it was perhaps Gaudi who had the greatest talent for bringing together diverse groups, ones which others viewed as being too diametrically opposed to be capable of coming together and co-existing amicably.
This was apparent not only in the artists and other individuals who surrounded him, but also in the varied styles and techniques he employed in his architecture. Much of his work can be seen in , where his structures are known as a fine representation of modernism. He also used a great variety of color in his buildings, and this art nouveau is often associated with his own unique style of design. All of these factors are what helped put him at the forefront of art movements to come: his unique ability to take on and transform traditional Spanish elements with the emerging diverse ethnic groups, merging these with his own fertile imagination, and consequently turning these forces into some of the greatest architecture the world has ever seen.
Miro has been viewed as being a prototype of
A. Spanish architecture
B. the Catalan mind
C. a fantasy
D. the Castilian mind
- Câu hỏi 113881:
Read the text and choose the best answer.
Western people rely on technical and mechanical solutions in everything they do. Refrigerators preserve their food, washing machines clean their underwear and computers are supposed to solve all their problems. When they are ill, they rely on the surgeon’s knife. If their hearts are running down, then they must be repaired, if they cannot be repaired, they should be replaced, just as an old car sometimes gets a new engine. But up to now we have had a shortage of donors to give their hearts, to keep one person alive, another donor had to die.
Nowadays there is more and more talk about using monkeys. Every monkey has a near-human heart, and humans have always been over careful in respecting the lives and well-being of other animals. This includes the life and well-being of other humans. Therefore, in the early years of the 22nd century - It was told the mass killings of monkeys may occur. We’ll need to use their hearts for human consumption.
Monkeys, on the whole, are happier creatures than their near relatives, Homo sapiens, or man. They know fear, of course, and they face real dangers, but they are also more intelligent than us. They create no unnecessary dangers for themselves, they run no businesses, chase no money, are unimpressed by gold – that utterly useless metal, and they do not care at all about hell or evil spirits. I have a vague feeling that it is not monkeys’ hearts that we ought to implant in ourselves, but monkeys’ brains.
The problem with heart transplants has been that…
A. some of the heart donors are too old
B. many people die after the operations
C. artificial hearts do not work very well
D. there are not usually enough donors
- Câu hỏi 113886:
Read the text and choose the best answer.
Western people rely on technical and mechanical solutions in everything they do. Refrigerators preserve their food, washing machines clean their underwear and computers are supposed to solve all their problems. When they are ill, they rely on the surgeon’s knife. If their hearts are running down, then they must be repaired, if they cannot be repaired, they should be replaced, just as an old car sometimes gets a new engine. But up to now we have had a shortage of donors to give their hearts, to keep one person alive, another donor had to die.
Nowadays there is more and more talk about using monkeys. Every monkey has a near-human heart, and humans have always been over careful in respecting the lives and well-being of other animals. This includes the life and well-being of other humans. Therefore, in the early years of the 22nd century - It was told the mass killings of monkeys may occur. We’ll need to use their hearts for human consumption.
Monkeys, on the whole, are happier creatures than their near relatives, Homo sapiens, or man. They know fear, of course, and they face real dangers, but they are also more intelligent than us. They create no unnecessary dangers for themselves, they run no businesses, chase no money, are unimpressed by gold – that utterly useless metal, and they do not care at all about hell or evil spirits. I have a vague feeling that it is not monkeys’ hearts that we ought to implant in ourselves, but monkeys’ brains.
According to the author, westerners believe heath problems can be solved by…
A. spending more money on scientific research
B. using technical mechanical methods
C. increasing the number of doctors
D. taking more precautions
