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柴油机高压电控燃油喷射系统最常见的形式有()燃油喷射系统。
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一辆使用的是常规起动机的汽车出现不能起动的故障,故障现象是将点火开关旋至起动档后,起动机发出“咔嗒”的声音之后就不动了,请你结合起动系统所学的相关知识判断哪些原因可能导致此种故障?
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太阳距离家畜非常远,可略而不计,是影响家畜的一个次要的环境因素。()
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紫砂泥不需加任何配料可单独成陶,这是因为紫砂的矿物组成属于()系
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During initial days of computing, software was largely developed by small groups of people. When this software was to be maintained by another set of people, it used to be a nightmarish experience. When large commercial projects were to be handled, it used to be analmost impossible task to keep the time and budget under control, and projects used to get delayed and many projects were abandoned halfway. There was no systematic procedure forthe software development; everything was done on ad hoc basis. This ad hoc approach led tothe 'software crisis'.Over the last few decades there has been a tremendous growth in information technologyand its impact on everyday life. Complex software systems have become critical to theoperation of many systems in areas such as banking, communications, manufacturing,power generation, and transportation. Progress in computer science and accumulated experience with industrial production of software have led to the emergence of software engineering as a separate discipline. The software engineering discipline has been defined as"the application of systematic, disciplined, quantifiable approaches to the development,operation, and maintenance of software. " that is, the application of engineering to software .The computer science discipline concerns with developing large applications. Software engineering covers not only the technical aspects of building software systems, but also management issues, such as directing programming teams, scheduling, and budgeting.For developing a software product, the development process is divided into differentstages. A convenient way of splitting the whole process is to divide the development into thefollowing five stages:Requirements Analysis & Specification: define the system requirements in detailDesign: specify system architecture and modules in detailCoding: produce source codeTesting: deal with unit testing and system testingMaintenance: fix bugs, enhance features and adapt across platforms.{二)Tell whether the following statements are true (T ) or false ( F) according to the passage A.(根据上立的内容判断下列句子的正误。 )36. During initial days of the development of software, everything was done in discipline. ( )37. The definition of software engineering is "the application of systematic, disciplined,quantifiable approaches to the development, operation, and maintenance of software. " ( )38. For developing a software product, you need design, coding and testing. ( )39. software engineering is the application of engineering to software. ( )40. Software engineering only covers the technical aspects of building software systems. ( ) .
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患儿男,1岁,因“近6个月出现发作性躯体前倾,双手拥抱样动作”来诊。每次发作持续1~3s,成簇出现。发作症状最可能是()
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办理组合贷款,申请人提供资料一般包括哪些?
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女性,26岁。2月前患肝炎住院。近日门诊复查,血化验结果:ALT30U,HAV-IgM(-),:HAV-IgG(+),抗HBs(+),抗HBc(+),此时诊断为()
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不是白喉棒状杆菌的特点的是()。
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高速铁路接触网故障需要限速或降弓时,限速范围原则上按故障指示地点前后各()加确定