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1972年2月21日，美国总统理查德·尼克松访华，受到毛泽东主席的亲切会见。大洋两岸两位巨人的手握到了一起，标志着中美关系揭开了新的篇章，象征着中美关系进入新的时代。 当年，为纪念这一盛事，某航空军工企业，曾根据报刊发表的新闻图片，设计铸造了一枚精美的像章。该章直径29厘米，厚1.2厘米，铝材铸造，重达2870克。章面镌刻毛泽东与尼克松握手这一永恒历史瞬间的半身侧面浮雕像。毛泽东穿中山装，站左面右，尼克松着西服，靠右面左。两人身体微倾，面露微笑，握手交谈，场面生动感人。经与新华社记者拍摄的新闻图片比较，尼克松身高比毛泽东高，会见时单手紧握毛泽东的手，而像章上的形象则相反，微妙地反115}出当时的某种社会心态，深深地烙下了那个特殊时代的印痕。 该像章运用的高浮雕蜡模精密铸造工艺，人物形神兼备，栩栩如生；发丝衣褶，雕琢精细。该章既属特大型半身“右侧面”像章，又是毛泽东像章制佩风潮结束以后出现的、绝无仅有的涉及美国领导人的像章。更为奇特的是，此章是航空军工厂采用制造战斗机的铝合金特制，寓意“铸剑为犁”、“化干戈为玉帛”…… 据考证，此章是1972年2月上海《中美联合公报》发表后，中央有关部门委托第三机械工业部国营东安机械厂设计制作，作为礼物赠送美国朋友的，生产数量不过十来枚，因设计制作时对人物形象作了艺术加工，样品送审未获中央通过，生产计划也未能实施。而已制成的数枚样章则被熔化、销毁，如今仅发现一枚。 根据本文，这枚像章的珍贵之处不包括下面哪项
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In 1967, in response to widespread public concern aroused by medical reports of asbestos that related deaths, the National Medical Research Council organized a committee of enquiry to investigate the health threats associated with the use of asbestos in the building industry. After examining evidences provided by medical researchers and building workers and management, the Council published a report which included advices for dealing with asbestos. The report confirmed the findings of similar research in the United States and Canada. Exposure to relatively small quantities of asbestos fibers, they concluded, was directly responsible for the development of cancers, asbestosis and related diseases. Taking into account evidence provided by economists and building industry management, however, the report assumed that despite the availability of other materials, asbestos would continue to play a major role in the British building industry for many years to come because of its availability and low cost. As a result, the council gave a series of recommendations which were intended to reduce the risks to those who might be exposed to asbestos in working environments. They recommended that, where possible, asbestos free materials should be employed. In cases where asbestos was employed, it was recommended that it should be used in such a way that loose fibres were less likely to enter the air. The report recommended that special care should be taken during work in environments which contain asbestos. Workers should wear protective equipment and take special care to remove dust from the environment and clothing with the use of vacuum cleaner. The report identified five factors which determine the level of risk involved. The state and type of asbestos is critical to determining the risk factors. In addition, dust formation was found to be limited where the asbestos was used when wet rather than dry. The choice of tools was also found to affect the quantities of asbestos particles that enter the air. Machine tools produce greater quantities of dust than hand tools and, where possible, the use of the latter was recommended. A critical factor takes place in risk reduction is the adequate ventilation of the working environment. When work takes place in an enclosed space, more asbestos particles circulate and it was therefore recommended that natural or machine ventilation should be used. By closely following these advices, it was claimed that exposure can be reduced to a reasonably practical minimum. Exposure to asbestos fibres can cause cancer ______.
A good marriage means growing as a couple but also growing as individuals. This isn"t easy, marriage has always been difficult. Why then are we seeing so many divorces at this time Yes, our modern social fabric is thin, and yes the permissiveness of society has created unrealistic expectations and thrown the family into disorder. But divorce is so common be-cause people today are unwilling to exercise the self-discipline that marriage requires. They expect easy joy, like the entertainment on TV, the thrill of a good party. Marriage takes some kind of sacrifice, net dreadful self-sacrifice of the soul, but some level of compromise. Some of one"s fantasies, some of one"s legitimate desires have to be given up for the value of the marriage itself. "While all marital partners feel shackled at times, it is they who really choose to make the marital ties into confining chains or supporting bends", says Dr. Whitaker. Marriage requires sexual, financial and emotional discipline. A man and a woman cannot follow every impulse, cannot allow themselves to stop growing or changing. A divorce is not an evil act. Sometimes it provides salvation(拯救) for people who have grown hopelessly apart or were frozen in patterns of pain or mutual unhappiness. Divorce can be like the first cut of the surgeon"s knife, a step toward new health and a good life. On the other hand, if the partners can stay past the breaking up of the romantic myths into the development of real love and intimacy, they have achieved a work as amazing as the greatest cathedrals(教堂) of the world. Marriages that do not fail but improve, that persist despite imperfections, are not only rare these days but offer a wondrous shelter in which the face of our mutual humanity can safely show itself. According to the author, an ideal marriage life ______.
李鹏总理向下届政府就发展科技教育文化事业提出建议时说，科技、教育、文化工作的根本任务，是提高全民族的科学文化素质和创新能力。他说，这是我国现代化事业发展的需要，也是适应世界科技革命和经济形势的要求。 李鹏提出，科技工作要注重在社会生产、流通、消费和环境保护等领域大力推广先进适用技术。促进科技成果尤其是信息技术成果的商品化，完善社会化科技服务体系，使科技进步更好地为经济和社会发展服务，为人民生活服务。加快高技术产业化步伐，用高新技术改造传统产业，注重解决产业结构调整和可持续发展所面临的关键技术问题，办好国家高技术产业开发区。积极推进科技体制改革，加快科研机构的改革，促进科技与经济密切联系。加强企业和科研院所、高等院校之间的联合，逐步使企业成为技术开发的主体。集中必要的力量，在基础研究的优势领域取得进展。鼓励发明创造，提高创新能力，保护知识产权。大力开展科普活动，增强全民科技意识。 李鹏说，今年，基本普及九年义务教育的人口地区要达到百分之七十二，再扫除350万青壮年文盲。要积极发展中等、高等职业教育和成人教育，开展多种形式的岗位和技术培训。进一步发展和引导社会力量办学。大力推进高等教育管理体制改革，通过共建、调整、合作、合并等形式，合理配置和充分利用教育资源，提高教育质量和效益。实施全面素质教育，加强思想品德教育和美育，改革教学内容、课程体系和教学方法，以适应社会对各类人才的需要。继续完善教育投资体制，多渠道增加教育投入。加强教师队伍建设，提倡尊师重教，改善教师的工作和生活条件。 李鹏指出，用邓小平理论武装广大干部和群众，在全社会形成共同理想和精神支柱，是思想建设的一项根本性任务。要广泛开展群众性的精神文明建设活动，大力倡导社会公德、职业道德和家庭美德，宣传各个领域的先进典型，提高全民族思想道德水平；繁荣和发展文学艺术、新闻出版、广播影视等事业，充分发挥思想宣传工作者、文学艺术工作者的积极性和创造性；积极开展哲学社会科学研究。加强文化基础设施建设，进一步解决边远和民族地区看电视、听广播的问题。改革文化管理体制，加强文化市场管理，继续开展“扫黄”、“打非”斗争，促进城乡文化市场健康发展。 “扫黄”的意思是______。
俄罗斯、阿塞拜疆、哈萨克斯坦、土库曼斯坦和伊朗徒劳无益地尝试就确定里海地位问题达成协议已经是第六年了。久拖不决的原因只有一个——每个参加国都谋求在下个世纪的里海石油开发中得到的份额更大一些。 专家估计，里海石油的预期储量在150亿吨到400亿吨之间。这就意味着，在21世纪，里海地区可能成为“黑金”的主要产地之一，这个地区将与波斯湾地区进行激烈竞争。 里海到底是海还是湖，这个问题提上了日程。阿塞拜疆认为，里海是个湖，应该分给几个国家，包括划分湖底、水面和深层湖水。土库曼斯坦也持这样的立场。哈萨克斯坦坚持按海洋法的原则划分里海，海洋法规定只划分海底，但共同使用水面。伊朗则主张实行共同管辖的原则，也就是说，邻近海域各自管辖，里海中间部分由五个国家共同使用。俄罗斯赞成伊朗的立场。如果按这个原则解决里海问题，俄罗斯就有可能限制西方公司开发里海石油资源，同时为俄罗斯的公司创造有利的条件。 五国各持己见自然谈不上有短期内解决里海地位问题的可能性。六年来，阿塞拜疆、哈萨克斯坦和伊朗的立场几乎没变。只是土库曼斯坦时而坚持分成几部分的原则，时而又趋向于莫斯科和德黑兰的观点。 在五国就里海地位问题进行双边和多边谈判的同时，阿塞拜疆、哈萨克斯坦和土库曼斯坦不等达成一致意见，就自行决定本国拥有石油并着手开发。于是，立刻就出现了这样一种趋势：把尽可能多的油田归在自己名下，并称本国对外国投资者承担了责任，从而让“邻国”面对既成事实。阿塞拜疆在这方面比其他国家技高一筹，在土库曼斯坦看来，阿塞拜疆极力想得到目前归它管的奇拉格、阿泽里和基亚帕兹油田。 莫斯科面对一些国家纷纷自行划分里海的事实，不得不在自己过去的立场上作出部分让步，同意把里海划分成几部分的原则。今年7月初，叶利钦和哈萨克斯坦总统在莫斯科签署了划分里海北部海底的协定。 土库曼斯坦和伊朗认为，这是不彻底的办法，会给就里海问题达成一致意见设置新的障碍。两国在联合声明中坚持，不仅要划分海底，而且要划分水面和生物资源。阿塞拜疆同意这个意见。这样一来，就出现了使里海五国分为对立的两个阵营的又一个方案。 俄罗斯为什么赞成伊朗的方案
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