如图所示,物体放在粗糙的斜面上,并用一细线将其固定在斜面上,系统处于静止状态。下

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问题:

如图所示,物体放在粗糙的斜面上,并用一细线将其固定在斜面上,系统处于静止状态。下列说法正确的是 [    ]

A.物体受到的摩擦力可能为零

B.线的张力可能等于物体重力的大小

C.斜面体与水平面间没有摩擦力的作用

D.水平面对斜面体的弹力大小等于物体与斜面体重力之和

考点:共点力的平衡
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Buerger病局部缺血期

A.腹部压疼最显著的部位
B.板状腹
C.右下腹柔软无压疼
D.腹胀肠鸣音消失
E.腹式呼吸消失

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安神散1功效与作用

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H-Tech Services for Client AH-Tech can offer customers a host of managed services that can enhance their own existing IT support infrastructure or provide a reliable, cost-effective alternative to in-house resources.Because your communication system is equally as important as your IT infrastructure, H-Tech’’s managed services offering also encompasses your communication network, providing a full range of telecom services, supporting both voice and data environments.BH-Tech can provide both administrative call — desk and technical help — desk facilities for clients utilizing our in-house systems or by remote access to clients established systems. The provision of a centralized call desk facility allows the production of extensive management information and reporting to clients across a wide spectrum of data.CH-Tech provides comprehensive consultancy services to ensure that the right IT infrastructure is set in place to meet your requirements. H-Tech can work with organizations to identify key business goals and evaluate the need for scalability, availability, manageability and security and will provide you with the optimum solution for your computing needs, providing IT assessment, design and implementation on a variety of computing platforms.DAll organizations need to keep their IT capabilities current to remain productive and competitive in today’’s marketplace, this often means you end up with idle assets in the form of desktops, laptops, printers etc that no longer meet business requirements but still represent a significant investment. H-Tech provides asset management and will refurbish, re-deploy, dispose or recycle these assets on your behalf, to ensure that you obtain the most value from this equipment and comply with European Environmental Legislation.ERecognizing the need for quick and cost-effective implementation that minimizes business disruption, H-Tech will oversee the careful planning and management of the entire project.FH-Tech will supply an engineering resource to provide the desktop installation/ Upgrade of PCs, laptops and peripherals directly to the user’’s desk. The new device is connected to the user’’s existing equipment (printer, zip drive, scanner etc) and the engineer would then fully test the equipment and deal with any legacy problems.Once a new desktop has been installed and peripheral items tested, the redundant equipment can be re-deployed (cascaded) to another user ensuring that the machine is re-configured accordingly.GH-Tech can provide a service to remove the packaging at the time of installation and will dispose of or recycle it in an environmentally friendly way.HFor larger rollouts, H-Tech can store a large number of systems on behalf of the Client and manage the logistics of multiple deliveries. Because H-Tech can co-ordinate both delivery and implementation, continuity of services is assured.IH-Tech’’s maintenance services have evolved to provide repair and maintenance services to major sites through the deployment of site-based engineers delivering fast responses to users. The engineers on site are supported by our extensive repair centre, which offers component level repairs across a wide product portfolio. Locally held and managed back-up equipment, facilitates minimum down time for users and allows IT departments to concentrate on developing and maintaining the infrastructure and systems.H-Tech undertakes to comply with clients SLA requirements and monitors and reports Key Performance Indicators through its Call Management Systems, all of which are available to customers via the Web. Please click here for further information on the H-Tech Repair Centre.JH-Tech can offer the recycling of all redundant IT equipment and the certified disposal and destruction of materials and the safe disposal of hazardous and special waste. Please click here for further information on the H-Tech Recycle initiative.KThe H-Tech Technical Support Division can provide on-going support to ensure that customers get the most from their IT system, ensuring that mission — critical applications are protected and the IT environment develops and grows with your company.H-Tech can provide tailored support agreements to meet individual customer requirements. Please click here for further information on the IT technical support services offered by H-Tech.Please click here for further information on the more specific telecom technical support services offered by H-Tech.LH-Tech recognises the need for customers to enhance their own technical knowledge and can offer tailored training courses to support IT departments and end users during major new deployments. Training can be provided at H-Tech’’s purpose — built training facility in Ipswich or can be held on customer site to ensure minimum disruption to the clients core business.Questions 1-9Read a computer company’’s Services for Client above. Each paragraph A—L describes a different service provided by the H-Tech company.From the list below (i — xii) choose the most suitable items for paragraphs A —L. Write the appropriate numbers (i-xii) in boxes 1-9 on your answer sheet.i System and infrastructure management servicesii Storage and deliveryiii Recycle Servicesiv Trainingv Design and consultancyvi Desktop installation and peripheral configuration/upgradesvii Help-desk servicesviii H-Tech Managed Servicesix Maintenance servicesx Asset managementxi Packaging removalxii Technical Support

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预留地坑、孔洞、沟槽内的防水层,应与孔(槽)外的结构防水层()

A.根据施工情况定

B.保持连续

C.可以局部设防

D.和甲方商量

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死亡抚恤

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