题目内容

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2006年 11月10日开工，2007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。
[问题]
1．针对环境条件，制订主要的施工技术措施。
2．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。
3．按风机安装质量问题调查结果，分别指出发生质量问题可能的主要原因。
4．风管及部件进场做什么检验？风管系统安装完毕后做什么检验？
5．变配电装置进入调试阶段，因环境湿度大，会造成调试时测试不准或不能做试验，在管理上应采取哪些措施？

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阅读以下说明，Java代码将应填入(n)处的字句写在对应栏内。
【说明】
链表和栈对象的共同特征是：在数据上执行的操作与在每个对象中实体存储的基本类型无关。例如，一个栈存储实体后，只要保证最后存储的项最先用，最先存储的项最后用，则栈的操作可以从链表的操作中派生得到。程序6-1实现了链表的操作，程序6-2实现了栈操作。
import java.io.*;
class Node //定义结点
{ private String m_content;
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{ m_content=str;
m_next=null; }
Node(String str,Node next)
{ m_content=str;
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String getData() //获取结点数据域
{ return m_content;}
void setNext(Node next] //设置下一个结点值
{ m_next=next; }
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{ return m_next; )
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【程序6-1】
class List
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China Seeks Donors to Narrow Bone Marrow Gap
1 China has launched a campaign to recruit more bone marrow donors, amid a shortage of funds as well as of sibling donors who could help the growing number of patients in need of lifesaving transplants, state media reported on Monday.
2 The Chinese Red Cross began the national campaign over the weekend to find donors for some 4 million patients suffering from leukaemia, thalassaemia and other blood diseases and awaiting bone marrow transplants, the official China Daily said. Every year China has 40,000 new leukaemia patients, most of them under 35 and 50 percent of them children, the newspaper said. Other reports have linked China's growing childhood leukaemia to solvents and building materials used in interior decoration.
3 With a tiny pool of bone marrow donors, weakened by the absence of sibling donors for most children because of China's one-child policy, doctors rely on donors from Taiwan to save many young leukaemia patients, the Beijing Evening News said last weekend. Taiwan, with a population of 22 million, has 210,000 registered donors compared with fewer than 30,000 donors among mainland China's 1.3 billion people, the newspaper said.
4 Yet the lack of registered donors may reflect a lack of funding for testing and recording data on potential donors rather than a lack of volunteers, the newspaper said. China needs a pool of at 1east 100,000 donors but testing them would cost more than 50 million yuan, it said.
5 The Hong Kong Marrow Match Foundation said it has helped "a handful" of patients in Beijing, Shanghai and other cities. "The number of requests is increasing" from mainland China, including direct calls to the charity from desperate patients or relatives, said the foundation's donor coordinator Marven Chin. But the cost of extracting bone marrow from one of the foundation's 40,000 registered donors and flying it by courier has to be borne by the patients, and many of them have to be aided financially, Chin said.
A Urgent Need for Both Donors and Funds
B Shortage of Donors
C Desperate Leukaemia Patients
D Seriousness of the Current Situation
E Shortage of Funds
F Comparison Between Mainland and Hong Kong and Taiwan
Paragraph 2 ______