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(四) 某施工单位承建一南方沿海城市的大型体育馆机电安装工程。合同工期为10个月，于2009年11月10日开工，2010年9月10日竣工。 该工程特点是各类动力设备包括冷冻机组、水泵、集中空调机组、变配电装置等，均布置在有通风设施和排水设施的地下室。 由于南方沿海空气湿度高、昼夜温差大，夏天地下室结露严重，给焊接、电气调试、油漆、保温等作业的施工质量控制带来困难。 通风与空调系统的风管设计工作压力为1000Pa。项目部决定风管及部件在场外加工。 项目部制定的施工进度计划中，施工高峰期在6～8月，正值高温季节。根据地下室的气候条件和比赛大厅高空作业多的特点，需制订针对性施工技术措施，编制质检计划和重点部位的质量预控方案等，使工程施工顺利进行，确保工程质量。 在施工过程中，由于个别班组抢工期，在管理上出现工序质量失控，致使在试车阶段发生施工质量问题，如通风与空调系统进行单机和联动试车时，有两台风机出现震动大、噪声大，电动机端部发热等异常现象。经调查发现：风机的钢垫铁有移位和松动；电动机与风机的联轴器同轴度超差。 为保证地下室管道焊接质量，针对环境条件编制质量预控方案。
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You can tell the age of a tree by counting its ring. But these records of a tree’s life really say a lot more. Scientists are using tree ring to learn what’s been happening on the sun’s surface for the last ten thousand years. Each ring represents a year of growth. As the tree grows, it adds a layer to its trunk, taking up chemical elements from the air. By looking at elements in the rings from a certain years, scientists can tell what elements were in the air that year. Dr. Stevenson is analyzing one element, carbon-14, in ring from both living and dead tree. Some ring go back almost ten thousand year to the end of the Ice Age. When Stevenson followed the carbon-14 levels changed with the intensity of solar burning. You see, the sun has cycles. Sometimes it bums fiercely, and at other times it is relatively calm. During the sun’s violent periods, it throw off charged particles in fast moving streams called "solar winds". The particularly interfere with the formation of carbon-14 on earth. When there is more solar wind activity, less carbon-14 is produced. Ten thousand years of tree ring show that the carbon-14 level rises and falls about every 420 years. The scientists concluded that solar wind activity must follow the same cycle. What affects the amount of carbon-14 on earth().
(二) 某电气安装工程项目，业主与某电力工程公司签订了工程项目总承包合同，该工程项目的变压器采用自耦式变压器(容量为800kVA)，电机采用三相异步电动机。 该工程项目的设计单位对变压器的采购编制了采购计划，经业主批准后，由项目经理进行采购。工程监理单位负责对变电压检验的组织工作。变压器运抵施工现场后，进行了开箱验收，经验收合格后，按吊装、吊芯检查、就位、试验、干燥的程序和要求进行安装。变压器安装完毕后，进行了绝缘油的击穿电压试验和交流耐压试验。绝缘油在试验时，温度一直保持在40℃左右，且在清洗注油后即开始加电压试验；变压器安装完成后静止5小时开始进行交流耐压试验。 三相异步电动机在检查过程中经电气试验发现质量可疑。 在三相异步电动机经电气试验发现质量可疑时，应该如何进行进一步检查
You can tell the age of a tree by counting its ring. But these records of a tree’s life really say a lot more. Scientists are using tree ring to learn what’s been happening on the sun’s surface for the last ten thousand years. Each ring represents a year of growth. As the tree grows, it adds a layer to its trunk, taking up chemical elements from the air. By looking at elements in the rings from a certain years, scientists can tell what elements were in the air that year. Dr. Stevenson is analyzing one element, carbon-14, in ring from both living and dead tree. Some ring go back almost ten thousand year to the end of the Ice Age. When Stevenson followed the carbon-14 levels changed with the intensity of solar burning. You see, the sun has cycles. Sometimes it bums fiercely, and at other times it is relatively calm. During the sun’s violent periods, it throw off charged particles in fast moving streams called "solar winds". The particularly interfere with the formation of carbon-14 on earth. When there is more solar wind activity, less carbon-14 is produced. Ten thousand years of tree ring show that the carbon-14 level rises and falls about every 420 years. The scientists concluded that solar wind activity must follow the same cycle. The purpose of the scientists in studying tree ring is to ().
某工程项目建设单位与施工总承包单位按《建设工程施工合同(示范文本)》签订了施工承包合同，并委托某监理公司承担施工阶段的监理任务。施工总承包单位将桩基工程分包给一家专业施工单位。 开工前： 1．总监理工程师组织监理人员熟悉设计文件时发现部分图纸设计不当，即通过计算修改了该部分图纸，并直接签发给施工总承包单位； 2．在工程定位放线期间，总监理工程师又指派测量监理员复核施工总承包单位报送的原始基准点、基准线和测量控制点； 3．总监理工程师审查了分包单位直接报送的资格报审表等相关资料； 4．在合同约定开工日期前的5天，施工总承包单位书面提交了延期10天开工申请，总监理工程师不予批准。 钢筋混凝土施工过程中，监理人员发现： 1．按合同约定由建设单位负责采购的一批钢筋虽供货方提供了质量合格证，但在使用前的抽检试验中材料检验不合格； 2．在钢筋绑扎完毕后，施工总承包单位未通知监理人员检查就准备浇筑混凝土； 3．该部位施工完毕后，混凝土浇筑时留置的混凝土试块试验结果没有达到设计要求的强度。 竣工验收时： 总承包单位完成了自查、自评工作，填写了工程竣工报验单，并将全部竣工资料报送项目监理机构，申请竣工验收。总监理工程师认为施工过程中均按要求进行了验收，即签署了竣工报验单，并向建设单位提交了质量评估报告。建设单位收到监理单位提交的质量评估报告后，即将该工程正式投入使用。 问题 建设单位收到监理单位提交的质量评估报告后，即将该工程正式投入使用的做法是否正确，说明理由。
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