题目内容

(1)A投标人的投标报价为3200万元，为最低投标价，经评审后推荐其为中标候选人。
(2)B投标人在开标后又提交了一份补充说明，提出可以降价5%。
(3)C投标人提交的银行投标保函有效期为70d。
(4)D投标人投标文件的投标函盖有企业及企业法定代表人的印章，但没有加盖项目负责人的印章。
(5)E投标人与其他投标人组成了联合体投标，附有各方资质证书，但没有联合体共同投标协议书。
(6)F投标人的投标报价最高，故F投标人在开标后第二天撤回了其投标文件。
业主对招标代理公司提出的要求是否正确？说明理由。
分析A、B、C、D、E投标人的投标文件是否有效？说明理由。
F投标人的投标文件是否有效？对其撤回投标文件的行为应如何处理？
该项目施工合同应该如何签订？合同价格应是多少？
请帮忙给出每个问题的正确答案和分析，谢谢！

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假定某操作系统存储器采用页式存储管理，页的大小为64字节，假定一进程的代码段的长度为702字节,页表如表6-5所示。该进程在相联存储器中的页表如表6-6所示。
现进程有如下的访问序列：其逻辑地址为八进制的105、217、567、1120、2500。
试问给定的这些地址能否进行转换？若能，请说明地址转换过程及相应的物理地址。若不能，则说明理由。

某城市桥梁工程，在施工前期，施工单位确定了施工顺序后编制了施工进度计划，且设计了施工平面图。在钻孔灌注桩的施工过程中，采用反循环回转钻孔原理。某天的施工过程中发生了扩孔事故，施工单位及时采取补救措施，未造成更大的损失。在施工期间形成和编制的施工技术文件按规定要求进行保管和归档。
施工开工前应编制哪些施工技术文件？
简述施工平面图的设计步骤。
简述施工进度计划编制的一般步骤。
常见的钻孔事故有哪几种？
常用预防扩孔事故产生的措施有哪些？
简述反循环回转钻孔的原理。
施工期内应编制的施工技术文件有哪些？
请帮忙给出每个问题的正确答案和分析，谢谢！

Section A
So far there have been discovered no limits to man’s capacity to learn.【76】From earliest times, however, men in positions of power or influence have suggested that the learning capacity of certain individuals or groups is severely limited and that they should not be expected to profit greatly , if at all, from education. These "ineducable”individuals have usually been members of minority or disadvantaged groups.【77】But, repeatedly, when their cultural disadvantages have been removed, these groups have shown that their previous failure to learn has been due not to incapacity but to lack of fully realized opportunity.
These findings have led educators to be much more modest and less hasty in their labelling and classifying procedures.【78】It has been realized that labels affixed to children tend to become self-fulfilling prophecies, that those who are expected to learn usually do so, and those who are expected to fail to learn also usually do so. Hence, when educators try to classify children at all, they increasingly tend to use their labels as temporary rather than permanent, as saying something only a-bout a quality of the child rather than about his person, and as something to be abandoned as soon as the child’s performance proves the label wrong.
【79】Similarly, no one has been able to confirm any certain limits to the speed with which man can learn. Schools and universities have usually been organized as if to suggest that all students learn at about the same rather tedious and regular speed. But, whenever the actual rates at which different people learn have been tested, nothing has been found to justify such an organization.【80】Not only do individuals learn at vastly different speeds and in different ways, but man seems capable of astonishing feats of rapid learning when the attendant circumstances are favorable. It seems that, in customary educational settings, one habitually uses only a tiny fraction of one’s learning capacities.
(46)

Now the connector buses run only during morning and______.