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【背景材料】某公司欲上马一工程建设项目，各方面手续和条件齐备后，公司方面打算以公开招标的方式选取承包商。由于公司自身不具备进行建设工程招标的条件，故选定了一家招标代理机构进行代理招标。招标代理单位按照如下程序进行了招标工作： (1)发布资格预审通告。 (2)申请招标。 (3)向资格预审合格者发出投标邀请书。 (4)发售招标文件。 (5)组织现场踏勘和标前会议。 (6)资格预审评审。 (7)接受投标文件。 (8)开标。 (9)评标。 (10)议标。经过各项工作，最终选定了一家单位作为中标单位，该公司与其签订了合同。1.【问题】 1．招标代理机构所采用的招标程序和内容是否正确若存在错误应如何改正 2．工程招标文件一般包括哪些内容 3．招标代理机构可以承担的招标事宜有哪些

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Since the Hawaiian Islands have never been connected to other landmasses, the great variety of plants in Hawaii must be a result of the long-distance dispersal of seeds, a process that requires both a method of transport and an equivalence between the ecology of the source area and that of the recipient area. There is some dispute about the method of transport involved. Some biologists argue that ocean and air currents are responsible for the transport of plant seeds to Hawaii. Yet the results of flotation experiments and the low temperatures of air currents cast doubt on these hypotheses. More probable is bird transport, either externally, by accidental attachment of the seeds to feathers, or internally, by the swallowing of fruit and subsequent excretion of the seeds. While it is likely that fewer varieties of plant seeds have reached Hawaii externally than internally, more varieties are known to be adapted to external than to internal transport. The passage supplies information for answering which of the following questions

A. Why does successful long-distance dispersal of plant seeds require equivalence between the ecology of the source area and that of the recipient area
B. Why are more varieties of plant seeds adapted to external rather than to internal bird transport
C. What varieties of plant seeds are birds that fly long distances most likely to swallow
D. What is a reason for accepting the long-distance dispersal of plant seeds as an explanation for the origin of Hawaii flora

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打开数据库时，要想取消自动运行的宏，应按住_______。

McCall提出的软件质量模型包括_________个软件之特性。

在对Access表中的字段进行查询时，可以利用________的结果进行进一步的查询。