更多"When Dr. John W.Gofman, professor o"的相关试题:
[单项选择]When Dr. John W.Gofman, professor of medical physics at the University of California and a leading nuclear critic, speaks of "ecocide" in his adversary view of nuclear technology, he means the following: A large nuclear plant like that in Kalkar, the Netherlands, would produce about 200 pounds of plutonium each year. One pound, released into the atmosphere, could cause 9 billion cases of lung cancer. This waste product must be stored for 500,000 years before it is of no further danger to man. In the anticipated reactor economy, it is estimated that there will be 10,000 tons of this material in Western Europe, of which one table-spoonful of plutonium-239 represents the official maximum permissible body burden for 200,000 people. Rather than being biodegradable, plutonium destroys biological properties.
In 1972 the U.S. Occupational Safety and Health Administration ruled that the asbestos level in the work place should be lowered to 2 fibers per cubic centimeter of air, but the effe
A. estimate the amount of nuclear material in Europe.
B. exemplify one of the possible causes of lung cancer.
C. highlight the measures needed to prevent lung cancer.
D. show the destructive properties of industrial waste materials.
[单项选择]What does the professor actually mean when he says this
A. The old are physically less healthy.
B. The young are mentally stronger.
C. The old are as strong as the young.
D. The young are stronger mentally and physically.
[单项选择]When John and Simon officially retired,
A. Ford was already involved in the management of the corporation.
B. Ford had been meeting with influential investors.
C. Ford had been giving most of the presentation to analysts.
[填空题]When John recovered unexpectedly from cancer, his doctors______(将这归功于约翰的坚强意志).
[单项选择]
When John Weston awoke that morning, he remembered that his mother was going into hospital. He hadn’t worked out what was wrong with her. He knew, though, she hadn’t been well for some time now, and it bad become familiar to him to see her eyes narrowed in a sudden attack of pain, and her hand pressing against her heart. Their own doctor, who she had finally gone to for advice, had sent her to a specialist who knew all about these things. He had told her that just as soon as there was a bed for her, she would have to come into his hospital where he could look after her himself.
During the weeks since then the pains had come ever more frequently, and the narrowed eyes be came an almost lasting part of her expression. Always rather sharp, she began losing her temper over little things so that John’s father kept his thoughts to himself more and more. John, as ready as possible to make allowances (体谅), tried to think what it would be like to have toothache a
A. as soon as she realized that something was wrong
B. only after her husband advised her to
C. a long time after the trouble began
D. when John asked what was wrong with her
[填空题]When John answered the doorbell recently, he was rather
astonished to see what he had purchased on the Internet only
two days before sitting on his doorstep. "I never expected to get (1)
my books so quickly, " he told Business Weekly.
Tommy shared John’s experience. He said online shopping
was very good and always offered comparatively lower prices than
ordinary retailer stores. Along with the rapidly developing (2)
IT industry, online shopping is attracting the interest of more
and more people.
The general manager of the Electronic Business Department
of Federal Software Co. Ltd., said online shopping had tremendous
market potential giving the large population. The company established (3)
an online shopping center for Internet surfers. More than 14,000 kinds
of goods are available, including computers, software, books and
