一个焊接六西格玛项目组团队，在确定提升熔深会使得焊接过程更稳定，从而减少焊漏。这里的

关于儿童类风湿病，以下不正确的是（）

A.Still型以全身症状起病，病初关节症状不明显，诊断困难

B.RF阴性的多关节型患者易发生关节畸形和强直，多伴抗核抗体阳性

C.少关节型较常见，受累关节一般＜4个，主要为大关节

D.RF阳性多关节型起病缓慢，表现为进行性的多发性关节炎，随后伴明显的X线改变与关节破坏

E.少关节型易并发虹膜睫状体炎，部分患者可累及骶髂关节，甚至发展成为强直性脊柱炎

只有产于法国夏朗德省境内，并获得（）的白兰地才可以被称为干邑酒。

A.金牌奖

B.优质奖

C.皇家金奖

D.黄牌金奖

T31网管上创建ZXCTN网元的操作过程中，下列哪些设置不包含在内（）。

A.设置网元IP地址

B.T－MPLS使能状态设置

C.端口UNI的使能设置

D.设置网元是否是网关网元

渲染合成是（）的基本制作步骤之一。

A.水墨动画

B.三维动画片

C.所有动画片

D.传统动画片

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。

By "ecocide" the author most probably means（）

A. waste utilization

B. ecological balance

C. radioactive reaction

D. massive bio-destruction