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（二）背景资料：某10万吨级高桩煤码头工程，桩基础采用Φ120mm的钢管桩，上部结构采用钢筋混凝土梁板结构。业主通过招标，选定了某监理机构；码头主体工程由某施工单位中标承担施工任务，在承包合同中明确，项目中的钢管桩由业主指定某钢结构厂供桩并运至现场，业主单位与供桩单位签订了合同，码头上的装、卸煤设备安装工程由中标承包主体工程的施工单位通过招标另行发包。在施工的过程中，因钢管桩供货单位供桩不及时和部分钢管桩的质量没有达到规范要求的标准等情况，使主体工程的沉桩进度延误了15天，并进一步使设备安装单位的工期延误了7天。 整个工程的竣工验收由哪家单位提出中请？简要说明竣工验收的程序。
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（五）我国沿海某港沉箱重力式码头预制沉箱下水，沉箱外形尺寸为：长8.0m、宽6.0m、高10．0m；沉箱共计有4个长为3.65m、宽2.65m、深9.6m的仓格，沉箱底板厚0.4m。沉箱下水时从潮汐表上查得潮高为1.0m，沉箱内压载水顶面较当地海域的理论深度基准面（理论最低潮位）低4.0m，此时沉箱的干舷高度为2.0m（满足沉箱的最小干舷高度要求）。若该沉箱的浮游稳定最小吃水深为6.0m，当地海域的理论深度基准面（理论最低潮位）在黄海平均海平面以下1.5m，沉箱拖运中要通过局部的海底浅点区，当地大地测量地形图中标明该浅点区的海底高程为-7.0m。拖运沉箱通过浅点区时段内从潮汐表上查得潮高为2.0m。 为了使沉箱更顺利地通过浅点区，当采取从沉箱中向外抽水的措施时，最少应该使沉箱仓格内的压载水面下降多少米，才能使沉箱通过浅点区？
第一篇Centers of the Great European CitiesThe centers of the great cities of Europe are meeting places by tradition. People gather there to drink coffee and chat late into the night. a mixture of locals and tourists make for an exciting, metropolitan atmosphere.Squares, plazas (广场) and arcades (拱廊) form the heart of Europe’s cities.Venice in Italy has the Piazza San Marco - a beautiful square surrounded by shops, churches, restaurants and cafés. In Barcelona, Spain, La Bosqueria is a lively market with hundreds of stalls selling all kinds of goods. London’s Covent Garden is filled with fruit and vegetable stalls by day and musicians, acrobats (杂技演员) and artists by night. The government buildings at the center of many cities often are architecturally impressive. In London, they serve as a beautiful backdrop (背景) to the coffee tables that line the streets and the banks of the Thames.These vibrant (有活力的) hearts are the product of centuries of evolution, social historian Joel Garreau told US News and World Report recently. "The reason people think Venice is so great today is you don’t see all the mistakes," said Garreau. "Those have all been removed." Most European cities were laid out before the invention of the car, so bars, restaurants and cafés were near to people’s homes. Today, the focus of many Europeans’ life has moved away from the centers. They live in the suburbs and outskirts, driving to supermarkets to get their supplies. But on a continent where people treasure convention, there are still those who hold onto traditional ways, living and shopping locally. These people, together with tourists, provide the city centers with their reason for existence.Coffee culture plays a part in keeping these city centers flourishing. This is particularly true of Paris whose citizens are famous enthusiastic conversationalists. This skill is developed over many hours spent chatting over espressos (浓咖啡) and cigarettes.Religion also plays a role in developing sociable atmosphere. People in Roman Catholic countries used to visit the Church on an almost daily basis. Entire communities would gather in the same building and then move out to the markets, cafés and bars in the surrounding streets. An enormous example of this relationship between church and society is the Duomo. The huge marble cathedral in Florence, Italy is surrounded by bakeries and coffee shops, and caters not only to the tourist crowds, but also the local community. The writer cites the Duomo in the last paragraph as an example to illustrate that（）
在同一个文件夹中可以同时存在两个名字相同的文件夹或文件。 ( )
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