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TEXT B Tomorrow evening about 20 million Americans will be shown, on their television screens, how easy it is to steal plutonium (钚) and produce "the most terrifying blackmail weapon ever devised" -- a homemade atomic bomb. They will be told that no commercial nuclear plant in the United States -- and probably in the world -- is adequately protected against a well planned armed attack by terrorists, and that there is enough information on public record to guide a nuclear thief not only to the underground rooms of nuclear plants where plutonium is stored, but also to tell him how the doors of those underground rooms are designed. The hour-long television programme, "The Plutonium Connection", makes its point by showing how a 20-year-old student of the Massachusetts Institute of Technology in five weeks designed an atomic bomb composed of plutonium and parts from a hardware store. The young man, whose identity is being kept secret for fear he may be kidnapped by terrorists, is quoted as saying: "I was pretty surprised about how easy it is to design a bomb. When I was working on my design, I kept thinking there’s got to be more to it than this, but actually there isn’t. It’s simple." The student worked alone, using information he obtained from science libraries open to the public. The television programme, produced for non-commercial stations across the country by a Boston educational station, shows how quantities of other "secret" information are available to anyone. The Atomic Energy Commission’s public reading room in Washington is described by the narrator as "the first place a bomb-designer would visit when he was planning his plutonium theft. On file there and freely available are the plans of every civilian nuclear installation in the country." The programme seems certain to create enormous controversy -- not only over the lack of nuclear safeguards, But also over the morality of appointing the student to design a bomb and the wisdom of drawing attention to the ways that a nuclear thief can work. Even an official of Public Broadcasting System, which is distributing the TV programme, confessed to uneasiness: "It’s a terribly important subject, and people should know about the dangers, but I can’t help wondering if the programme won’t give someone ideas." "The Plutonium Connection" explains, for example, that the security systems of nuclear plants were all designed to prevent sabotage by perhaps one or agents of some foreign power. But now this appears less of a hazard than the possibility of an attack by an armed band of terrorists with dedicated disregard for their own lives. The programme discusses two major plutonium reprocessing plants in the US -- one already operating in Oklahoma, one being completed in South Carolina -- neither of which has more than a handful of armed guards to supplement the alarms, fences and gun-detectors that Government security requires. Both are in such remote areas that it would take at least 45 minutes for a sizeable force to be assembled, if there were an attack. An official of the South Carolina plant -- a joint operation of Allied Chemical, Gulf Oil and Royal Dutch Shell -- admits to television viewers that the "system we’ve designed would probably not prevent" a band of about 12 armed terrorists from entering. Stealing plutonium is even easier, the programme suggests. Despite constant survey of all materials on the list, there are inevitably particles of plutonium unaccounted for -- about I lb a month at the Oklahoma plant, owned by the KerrMcGee oil company, which in a year adds up to enough to make an atomic bomb. It is suggested that stealing would be even easier if instrument technicians were unscrupulous enough to alter their measuring devices. The television film also shows radioactive fuel being transported to nuclear processing plants in commercial armoured cars. As safety measure, US drivers of such cars are ordered to contact headquarters by radio telephone every two hours. But the equipment is "cumbersome and unreliable", and in difficult terrain there are radio black out areas. The programmer ends with a warning from Dr. Theodore Taylor, a former Atomic Energy Commission officer who has long contended that any person of modest technical ability could make an atomic bomb: "If we don’t get this problem under international control within the next five or six years, there is a good chance that it will be permanently out of control."
A．students making their own atomic bombs.B．foreign spies stealing secretsC．terrorists stealing plutonium and making their own bombsD．technicians stealing plutonium
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金融风险预警系统通过金融风险预警指标体系来实现对风险的识别与评估。
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（）是一种线性有序的结构，由一系列依次执行的语句或模块构成。
A.循环结构
B.分支结构
C.顺序结构
D.层次结构
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平均滞留时间的方差
A．米氏方程
B．统计矩法
C．零阶矩
D．一阶矩
E．二阶矩
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计算机软件只要开发完成就能获得（）并受到法律保护。
A.著作权
B.专利权
C.商标权
D.商业秘密权
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地表移动观测站，在每次观测结束，要及时计算（）。
A.高程
B.平距
C.坐标
D.垂直变形
E.水平变形
F.下沉速度
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由于氯离子是一种活性阴离子，它能优先并有选择地吸附在氧化膜上，把膜上的氧原子排挤掉，然后和氧化膜中的阳离子结合成可溶性氯化物，此过程为（）的机理。
A.电偶腐蚀
B.浓差腐蚀
C.小孔腐蚀
D.缝隙腐蚀
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依据GB/T2694-2010《输电线路铁塔制造技术条件》，以下对漏镀部位修复的描述正确的是（）
A.修复的总漏镀面积不应超过每个镀件总表面积的0.5% B.每个漏镀面积不应超过10cm2 C.修复方法可以采用热喷涂锌或涂富锌涂层 D.修复涂层的厚度比镀锌层要求最小的厚度厚20µm以上
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股指期货交易主要用于对冲( )。 A．信用风险 B．国家风险 C．股市非系统风险 D．股市系统风险
A.信用风险
B.国家风险
C.股市非系统风险
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网上银行的特征不包括()。
A . A．低成本
B . B．交易安全
C . C．服务效率高
D . D．面对面的贴心服务
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根据我国全国人民代表大会和地方各级人民代表大会代表法规定，人大代表参加本级人大选举时，对确定的候选人：（ ）
A.可以投赞成票B.可以投反对票C.可以弃权D.不能另选他人
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劳动合同和集体合同制度包括（）。
A . 劳动合同的订立、履行
B . 集体合同协商、订立的程序
C . 劳动合同的变更、解除和终止
D . 集体合同协商、订立的原则
E . 因劳动合同发生争议的调节和处理
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在配位滴定法中,下列有关酸效应的说法正确的是( )。
A. 酸效应系数越大，配合物的稳定性越大 B. 酸效应系数越小，配合物的稳定性越大 C. pH 值越大，酸效应系数越大 D. 酸效应曲线表示的是各金属离子能够被准确滴定的最高 pH 值
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进行声音采集的时候，为了提高录音的效果下列那些做法是正确的()
A.录音环境要安静，避免录制过多的噪音
B.录音时，距离话筒不能太远，否则可能录制的声音音量太小
C.录音时，尽可能的贴近话筒获得更好的音质，以能清晰听到呼吸声为最佳
D.在录制开始后，应先录制一段空白，用于降噪时的噪音采样
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