设向量组α(→)1，α(→)2，…，α(→)s的秩为r，则（　　）。

[问答题]This section consists of one passage followed by a summary. Read the passage carefully and complete the summary below by choosing no more than three words from the passage for each blank. Remember to write the answers on the answer sheet.　　Questions 1 to 5 are based on the following passage.Management in Cyberspace　　Virtual reality is often used to mimic hazardous environments—cockpits of combat aircraft, burning oil rigs, the treasure-strewn caves of irritable dragons and so on. Until now, though, it has rarely been deployed to simulate that most hazardous environment of all—the office. But if Sandra Testani of the Franklin Institute in Philadelphia has her way, it will soon be possible to hone the black arts of office politics and corporate survival on a computer before you employ them against your colleagues in the real world. Or, from the boss's point of view, you will be able to practise your skills at “co-operating” in virtual “team-building” exercises.　　Dr. Testani's virtual world is called CIMBLE. The acronym stands for CADETT which in turn stands for Consortium for Advanced Education and Training Technologies Interactive Multi-user Business Learning Environment. The idea behind CIMBLE is to let people who are unable or unwilling to meet face to face practise collaborating with each other over a computer network.　　To do this, CIMBLE's software creates a virtual world for up to six participants. Each acts via an electronic representative known as an avatar. A participant sees the world (including the other players' avatars, which appear on screen as cartoon-like images of men and women) from his own avatar's point of view. Any other characters that the avatars might interact with are played by a moderator, who also acts as Big Brother, overseeing and monitoring the activities of the group and steering things in a suitable direction.　　The CIMBLE software allows the avatars to walk around and manipulate objects in the virtual world (opening doors, for example) at the click of a mouse. It also lets avatars (and hence the participants) talk to one another. Most conversations are assumed to be in the open, and can be heard by everybody. But true office Machiavellis will be pleased to learn that private chats are also possible, since the software can work out who is within earshot of whom, and will transmit sound only to those who should be able to hear it.　　So far, Dr. Testani and her colleagues have devised two exercises in their new electronic world. One simply brings the participants together around a virtual conference table and lets them chew over an agenda provided by the moderator. The second, however, is more sophisticated. The participants are deemed to be working for a civil-engineering firm, and are sent off to the proposed site of a new bridge to settle a dispute with local residents and officials. After a long car ride and a night in a hotel (all depicted in loving detail by CIMBLE's software), they meet the irate local and try to mollify them. A successful outcome, allowing the bridge to go ahead, is greeted by an on-screen display of virtual fireworks.　　Summary:　　Dr. Testani of Franklin Institute designed a software called CIMBLE which 　1　CADETT Interactive Multi-user Business Learning Environment. This virtual world is used to mimic the office and has made it possible for 　2　people to practise collaborating with others over a computer network. 　3　is represented by an avatar, and their activities are monitored by a moderator. With this software, participants can talk to each other—as well as have 　4　in the virtual world because the software will transmit sound only to people who should be able to hear it. Two exercises have been devised up till now. One allows the participants to think over an agenda, while the other requires them to 　5　over the construction of a new bridge.

[填空题]护轨平直部分轮缘槽标准宽度为42mm，如侧向轨距为1441mm时，则侧向轮缘槽标准宽度为（）mm。

[多选题]以人为本必须充分发挥人的（），立足于以信息服务产品满足人们日益增长的文化需求，坚持“对内以员工为本、对外以客户为本”的工作导向。

[单选题]电源与信号线必须保持多少CM的间距？（）

[问答题]迪尔凯姆的社会观是什么？

[填空题]影响工矿区水土流失因素中人为因素具有主导性，而自然因素则具有区域性、（）。

[问答题]甲上市公司有一条由专利权X、设备Y以及设备Z组成的生产线，专门用于生产产品W。该生产线于2010年1月投产，至2016年12月31日已连续生产7年，甲公司按照不同的生产线进行管理，产品W存在活跃市场。生产线生产的产品W，经包装机H进行外包装后对外出售。　　（1）生产产品W的生产线及包装机H的有关资料如下。　　①专利权X于2010年1月以400万元取得，专门用于生产产品W。甲公司预计该专利权的使用年限为10年，采用直接法摊销，预计净残值为0。　　该专利权除用于生产产品W外，无其他用途。　　②专用设备Y和Z是为生产产品W专门订购的，除生产产品W外，无其他用途。　　专门设备Y系甲公司于2009年12月10日购入，原价1400万元，购入后即达到预定可使用状态。设备Y的预计使用年限为10年，预计净残值为0，采用年限平均法计提折旧。　　专用设备Z系甲公司于2009年12月16日购入，原价200万元，购入后即达到预定可使用状态，设备Z的预计使用年限为10年，预计净残值为0，采用年限平均法计提折旧。　　③包装机H系甲公司于2009年12月18日购入，原价180万元，用于对公司生产的部分产品（包括产品W）进行外包装，该包装机由独立核算的包装车间使用。公司生产的产品进行包装时需按照市场价格向包装车间内部结算包装费，除用于本公司产品的包装外，甲公司还用该机器承按其他企业产品外包装业务，收取包装费。该机器的预计使用年限为10年，预计净残值为0，采用年限平均法计提折旧。　　（2）2016年，市场上出现了产品W的替代产品，产品W市价下跌，销量下降，出现减值迹象。2016年12月31日，甲公司对有关资产进行减值测试。　　①2016年12月31日，专利权X的公允价值为118万元，如将其处置，预计将发生相关费用8万元，无法独立确定其未来现金流量现值；设备Y和设备Z的公允价值减去处置费用后的净额以及预计未来现金流量的现值均无法确定；包装机H的公允价值为62万元，如处置预计将发生的费用为2万元，根据其预计提供包装服务的收费情况计算，其未来现金流量现值为63万元。　　②甲公司管理层2016年年末批准的财务预算中与产品W生产线预计未来现金流量有关的资料如下表所示（假定有关现金流量均发生于年末，各年末不存在与产品W相关的存货，收入、支出均不含增值税）：　　③甲公司的增量借款年利率为5%（税前），公司认为5%是产品W生产线的最低必要报酬率。复利现值系数如下：　　（3）其他有关资料：　　①甲公司与生产产品W相关的资产在2016年以前未发生减值；　　②甲公司不存在可分摊至产品W生产线的总部资产和商誉价值；　　③本题中有关事项均具有重要性；　　④本题中不考虑中期报告及所得税影响。要求：　　（1）判断甲公司与生产产品W相关的各项资产中，哪些资产构成资产组，并说明理由。　　（2）计算确定甲公司与生产产品W相关的资产组未来每一期间的现金净流量及2016年12月31日预计未来现金流量的现值。　　（3）计算包装机H在2016年12月31日的可收回金额。　　（4）填列甲公司2016年12月31日与生产产品W相关的资产组减值测试表（表格见答案，不需列出计算过程）。表中所列资产不属于资产组的，不予填列。　　（5）编制甲公司2016年12月31日计提资产减值准备的会计分录。（答案中的金额单位以“万元”表示）

[多选题]未在招商银行开立对公账户的单位，如想签订代发协议，必须提供以下哪些文件（）。

[单选题]甲公司为增值税一般纳税人。2019年6月1日，甲公司购入一批生产用原材料，增值税专用发票上注明的价款为3000万元，可抵扣增值税额为390万元，发生运输途中保险费80万元，可抵扣增值税额为4.8万元；发生运输费用200万元，可抵扣增值税额为18万元，发生入库前的挑选整理费用20万元。原材料验收入库时，甲公司发现短缺6%。经与供应商沟通并调查，确定为运输过程中盗窃所致，保险公司同意赔付上述损失。另外，甲公司还为该批原材料发生仓库保管费15万元。不考虑其他因素，甲公司购入原材料的成本是（　　）万元。

[单选题]若用丙基硫氧嘧啶+碘剂作术前准备，未达手术要求的表现是（　　）。