问题 单项选择题

华罗庚同志的“运筹学”是科学的,但对于“眼看油瓶子倒了也不管”的人是不起作用的。引进的新技术装备掌握在不关心社会主义利益、只顾个人利益的人手里,不但不能充分发挥作用,而且会大大缩短它的寿命。
这段文字主要支持的一个观点是( )。

A.科学的东西不一定能起作用
B.科学和技术必须掌握在可靠的人手里
C.引进新技术装备时要考虑使用者的能力水平和技术素质
D.油瓶子倒了应该把它扶起来才对

答案

参考答案:B

解析: 文中第一句话指出科学对于“眼看油瓶子倒了也不管”的人是不起作用的,后一句则指出新技术装备掌握在不关心社会主义利益的人手里会大大缩短寿命,故此段是指科学和技术必须掌握在可靠的人手里。故选B。

判断题
单项选择题

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 effective date of the ruling has been delayed until now. The International Federation of Chemical and General Workers’ Unions report that the 2-fiber standard was based primarily on one study of 290 men at a British asbestos factory. But when the workers at the British factory had been reexamined by another physician, 40--70 percent had X-ray evidence of lung abnormalities. According to present medical information at the factory in question, out of a total of 29 deaths thus far, seven were caused by lung cancer. An average European or American worker comes into contact with six million fibers a day. "We are now, in fact, finding cancer deaths within the family of the asbestos worker," states Dr. Irving Selikoff, of the Mount Sinai Medical School in New York.

It is now also clear that vinyl chloride, a gas from which the most widely used plastics are made, causes a fatal cancer of the blood-vessel cells of the liver. However, the history of the research on vinyl chloride is, in some ways, more disturbing than the "Watergate cover-up." "There has been evidence of potentially serious disease among polyvinyl chloride workers for 25 years that has been incompletely appreciated and inadequately approached by medical scientists and by regulatory authorities," summed up Dr. Selikoff in the New Scientist. At least 17 workers have been killed by vinyl chloride because research over the past 25 years was not followed up. And for over 10 years, workers have been exposed to concentrations of vinyl chloride 10 times the "safe limit" imposed by Dow Chemical Company. (422 words)

Notes: plutonium 钚。asbestos 石棉。polyvinyl chloride 聚氯乙烯。

According to paragraph 3, some workers have been killed by harmful pollutants in that()

A. production could not be halted

B. they failed to take safety measures

C. research was not pursued to a solution

D. safety equipment was not adequately provided