Text 3
AIDS is one of the most fatal and rampant diseases that deprives of hundreds of thousands of lives each year all over the world, and the condition in African countries is much worse for lack of medicine, education as well as preventive measures. Scientists and researchers have never ceased their efforts to halt the wide spreading tendency of this infecting disease, unfortunately, till now, they have not invented any effective vaccine. Last week, an experimental AIDS vaccine tested in Thailand on some 2,500 drug users failed to protect them from becoming infected with HIV, declared VaxGen Inc., the vaccine’s developer. The pool results were widely expected since VaxGen Inc. had said earlier that its vaccine did not work in a larger North American study.
Most AIDS researchers agree that vaccines will be the only effective way to control a virus that has killed 28 million people and infected 42 million more worldwide.
Two dozen other vacci
A. It is incurable.
B. The international public health community has not done enough to control the disease.
C. Vaxgen's vaccine is more effective than others.
D. It is still hopeful to cure AIDS.
Text 3
AIDS is one of the most fatal and rampant diseases that deprives of hundreds of thousands of lives each year all over the world, and the condition in African countries is much worse for lack of medicine, education as well as preventive measures. Scientists and researchers have never ceased their efforts to halt the wide spreading tendency of this infecting disease, unfortunately, till now, they have not invented any effective vaccine. Last week, an experimental AIDS vaccine tested in Thailand on some 2,500 drug users failed to protect them from becoming infected with HIV, declared VaxGen Inc., the vaccine’s developer. The pool results were widely expected since VaxGen Inc. had said earlier that its vaccine did not work in a larger North American study.
Most AIDS researchers agree that vaccines will be the only effective way to control a virus that has killed 28 million people and infected 42 million more worldwide.
Two dozen other vacci
A. Disease
B. Breed
C. Virus
D. Cell
Text 3 AIDS is one of the most fatal and rampant diseases that deprives of hundreds of thousands of lives each year all over the world, and the condition in African countries is much worse for lack of medicine, education as well as preventive measures. Scientists and researchers have never ceased their efforts to halt the wide spreading tendency of this infecting disease, unfortunately, till now, they have not invented any effective vaccine. Last week, an experimental AIDS vaccine tested in Thailand on some 2,500 drug users failed to protect them from becoming infected with HIV, declared VaxGen Inc., the vaccine’s developer. The pool results were widely expected since VaxGen Inc. had said earlier that its vaccine did not work in a larger North American study. Most AIDS researchers agree that vaccines will be the only effective way to control a virus that has killed 28 million people and infected 42 million more worldwide. Two dozen other vaccines are being tested on
A. In Thailand
B. In North America
C. At Brisbane
D. In Africa
Text 4
One of the most authoritative speaking to us today is, of course, the voice of the advertisers. Its strident clamor dominates our lives. It shouts at us from the television screen and the radio loudspeakers; waves to us from every page of the newspaper; plucks at our sleeves on the escalator; signals to us from the roadside billboards ’all day and flashes messages to us in coloured lights all night. It has forced on us a whole new conception of the successful man as a man no less than 20% of whose mail consists of announcements of giant carpet sales.
Advertising. has been among England’s biggest growth industries since the war, in terms of the ratio of money earnings to demonstrable achievement. Why all this fantastic expenditure
Perhaps the answer is that advertising saves the manufacturers from having to think about the customer. At the stage of designing and developing a product, there is quite enough to think about without wor
A. have a sufficiently attractive design
B. offer good value for money
C. fulfill the manufacturer's claims
D. satisfy their personal needs
Text 4
Most economists in the United States seem excited by the spell of the free market. Consequently, nothing seems good or normal that does not accord with the requirements of the free market. A price that is determined by the seller or, for that matter, established by anyone other than the aggregate of consumers seems harmful. Accordingly, it requires a major act of will to think of price-fixing (the determination of prices by the seller) as both "normal" and having a valuable economic function. In fact, price-fixing is normal in all industrialized societies because the industrial system itself provides, as an effortless consequence of its own development, the price-fixing that it requires. Modern industrial planning requires and rewards great size. Hence, a comparatively small number of large firms will be competing for the same group of consumers. That each large firmwill act with consideration of its own needs and thus avoid selling its products fo
A. a profitable result of economic development.
B. an inevitable result of the industrial system.
C. the result of a number of carefully organized decisions.
D. a phenomenon common to industrialized and non-industrialized societies.
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