患者女，54岁，无症状，常规体检透视时发现右上肺阴影。既往无结核病史。体格检查阴性。

如果+5表示一个物体向西运动5米，那么-3表示（　　）

A．向南走3米

B．向北走3米

C．向东走3米

D．向西走3米

信息系统建设中经济可行性分析的主要内容是( )。

A．分析投资来源渠道

B．分析能否支持日常运行

C．分析能否带来经济效益

D．分析未来系统扩充的可能性

A new system that scans customers’ fingerprints and deducts (扣除) the grocery bill from their bank accounts has taken supermarkets in southwestern Germany by storm and is being picked up by hardware stores, school restaurants and even bars are picking it up.

The Edeka supermarket chain is the first retail (零售) business in Germany to use the new system. “Almost a quarter of our customers pay with their fingers,” said an employee at the headquarters. Edeka has tried the system at 70 of its supermarkets and customers like it.

“At first we thought that only the young who really keep up with the latest technology would be interested, but we were wrong,” said Stefan Sewoester from IT Werke. “Almost two-thirds of the people who use the system are 40 and older,” he said.

IT Werke, a computer company, is one of the pioneers of fingerprint payment software in Germany. It has helped about 150 shops, restaurants and bars to put in the fingerprint scanning machines.

To sign up for the service, customers must have their fingerprints taken and leave their addresses and banking details with the shop. The shop then takes the cost of goods directly out of the customer’s bank account.

“It is a godsend for elderly people because they do not have to remember their pin-code to pay with their bank cards, or to look around for their glasses or cash.” Sewoester said.

The stores benefit from the system, too. It saves more than time in the check-out line. It also cuts out the hidden costs of accepting electronic card payments.

Fingerprint date profiling has long been used to control access and for other security purposes in Germany’s airports, laboratories and nuclear power plants. IT Werke plans to keep refining the retail use of the system. It wants to introduce fingerprint payment in school restaurants with an additional feature that might appeal to parents－they could disable their children’s access to junk food.

1. Which of the following can be the best title of the passage?

A. Pay with Fingers.                                                B. New Development in Technology.

C. Supermarket Revolution.                                 D. Change in Computer Software.

2. Most of the people who use the fingerprint system are ______.

A. youngsters                B. housewives               C. IT fans              D. the elderly

3. The underlined word “godsend” probably means ______.

A. great fortune     sent by God                          B. good luck sent by God

C. good things that happen unexpectedly                    D. gift sent by God

4. What do we know by inference from the passage?

A. Fewer shops will try the new software because of the cost.

B. The new service requires certain personal information.

C. IT Werke should be the largest computer company in Germany.

D. The new change in payment only benefits elderly people.

背景资料：

某新建泵站采用堤后式布置，主要工程内容包括：泵房、进水闸、防洪闸、压力水箱和穿堤涵洞。工程所在地的主汛期为6月-9月。合同双方依据《水利水电工程标准施工招标文件》（2009年版）签订了施工合同。合同部分内容如下：（1）合同工期18个月，工程计划2012年11月1日开工，2014年4月30日完工；（2）签约合同价为810万元；（3）工程质量保证金为签约合同价的5%。

施工中发生如下事件：

事件1：根据施工方案及安全度讯要求，

承包人编制了进度计划，并获得监理人批准。其部分进度计划见表1（不考虑前后工作的搭接，每月按30天计）

表1工程项目施工进度计划表（部分）

事件2：为加强项目部管理，承包人提出更换项目经理并按合同约定的要求履行了相关手续。承包人于2013年2月25日更换了项目经理。

事件3：由发包人组织采购的水泵机组运抵现场，承包人直接与供货方办理了交货验收手续，并将随同的备品条件、专用工器具与资料清点后封存，在泵站安装时，承包人自行启用一封存的专用工器具。

事件4：合同工程完工证书颁发时间为2014年7月10日。承包人在收到合同工程完工证书后，向监理人提交了包括变更及索赔金额、工程预付款扣回等内容的完工付款申请单。

事件2中，承包人更换项目经理应办理哪些手续？

（）是最基本的安全管理制度，是所有安全生产管理制度的核心。

A．安全生产教育制度

B．安全生产责任制

C．安全检查制度

D．安全监察制度