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某电器设备厂筹资新建一生产流水线，该工程设计已完成，施工图样齐备，施工现场已完成“三通一平”工作，已具备开工条件。工程施工招标委托招标代理机构采用公开招标方式代理招标。 招标代理机构编制了标底(800万元)和招标文件。招标文件中要求工程总工期为365d。按国家工期定额规定，该工程的工期应为460d。 通过资格预审并参加投标的共有A、B、C、D、E 5家施工单位。开标会议由招标代理机构主持，开标结果是这5家投标单位的报价均高出标底近300万元，这一异常引起了业主的注意，为了避免招标失败，业主提出由招标代理机构重新复核和制订新的标底。招标代理机构复核标底后，确认是由于工作失误，漏算部分工程项目，使标底偏低。在修正错误后，招标代理机构重新确定了新的标底。A、B、C 3家投标单位认为新的标底不合理，向招标人要求撤回投标文件。 由于上述问题纠纷导致定标工作在原定的投标有效期内一直没有完成。 为早日开工，该业主更改了原定工期和工程结算方式等条件，指定了其中一家施工单位中标。 问题 根据该工程的具体条件，招标师应向业主推荐采用何种合同(按付款方式划分)为什么
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一个项目具有一个项目经理，一个项目经理可管理多个项目，则实体“项目经理”与实体“项目”的联系属于（）的联系。
某项目，需要采购价值280万元的设备，该采购项目属于政府采购项目，招标代理机构向业主提出可以采用公开招标或竞争性谈判进行采购。业主选择了采用竞争性谈判方式进行采购。 问题 业主选择的竞争性谈判方式是否合理说明理由。
TEXT C Black and white are two common words. White means bright and purity, black is darkness and evil, but not always. Sometimes the words are used differently. White hats and black hats represent the traditional meaning of the words. The hats are symbols of the good guys and the bad guys in American western movements. White hats and black hats had a real purpose in the early days of motion pictures. The early movies were made with no sounds. So the movie directors put a white hat on the hero and a black hat on his opponent, the bad guy in the story. A black sheep is a person who does things that are not accepted, that violate tradition. A black sheep is rejected because he brings shame to his group. A family may have a member who is thought of as a black sheep, a person who is not welcome at family gatherings. Black is also used in some expressions that describe good things. Feeling in the black, for example, is a good situation for anyone. It is a business expression. It means that the company is earning money. The store that makes profit is in the black. The expression comes from the color of ink that is used in the books that record a company’s profits or losses. Profits are written in black ink, losses are written in red. So when someone says his business is in the red, he means it is losing money. White usually means something good. A white-collar job, for example, is the kind of job many people seek. It is a job where you work at the desk, using your brain instead of your muscles. Usually white-collar jobs pay more than blue-collar jobs. These jobs are where you don’t use your muscles. Sometimes white is used in an expression that is not good. Whitewash is such an expression. At first whitewash meant to paint over something with white paint, making it look better but now whitewash has different meaning, to hide or cover up mistakes or falls. A newspaper might report, for example, that the investigation of the train accident is a whitewash because investigators did not really try to discover who was responsible. Some expressions use black and white together. Someone may say to you that your proposal sounds all right but he wants to see it in black and white. He wants to see your proposal in writing, black ink on white paper. Some people are said to see things only in black and white. Now this expression, black and white, represent opposite extremes, with no middle ground between them. Most issues in the world are not so simple as black and white. One side of an issue is not all white or good and the other side is not all black, wrong or evil. In the real world there are many gray areas where black and white are mixed to represent the true situation. In the real world there are many gray areas. Here" gray areas" represent
In this section, you will hear several news items. Listen to them carefully and then answer the questions that follow.Questions 21 and 22 are based on the following news. At the end of the news item, you will be given 10 seconds to answer the questions. Now, listen to the news. What is the new measure to increase American border security and immigration enforcement
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