更多"[单选题]During this period"的相关试题:
[单选题]During the early period of ocean navigation,（ ）any need for sophisticatedinstruments and techniques.
A.so that hardly
B.when there hardly was
C.hardly was
D.there was hardly
[单选题]_______ , also known as the best rate-of-climb airspeed, gives the greatest gain in altitude over a period of time during climb.
A.Vy
B.Vlo
C.Vx
D.Va
[不定项选择题]During the past generation, the American middle-class family that once could count on hard work and fair play to keep itself financially secure has been transformed by economic risk and new realities. Now a pink slip, a bad diagnosis, or a disappearing spouse can reduce a family from solidly middle class to newly poor in a few months.
In just one generation, millions of mothers have gone to work, transforming basic family economics. Scholars, policymakers, and critics of all stripes have debated the social implications of these changes, but few have looked at the side effect: family risk has risen as well. Today's families have budgeted to the limits of their new two-paycheck status. As a result, they have lost the parachute they once had in times of financial setback-a back-up earner (usually Mom) who could go into the workforce if the primary earner got laid off or fell sick. This "added-worker effect" could support the safety net offered by unemployment insurance or disability insurance to help families weather bad times. But today, a disruption to family fortunes can no longer be made up with extra income from an otherwise-stay-at-home partner.
During the same period, families have been asked to absorb much more risk in their retirement income. Steelworkers, airline employees, and now those in the auto industry are joining millions of families who must worry about interest rates, stock market fluctuation, and the harsh reality that they may outlive their retirement money. For much of the past year, President Bush campaigned to move Social Security to a saving-account model, with retirees trading much or all of their guaranteed payments for payments depending on investment returns. For younger families, the picture is not any better. Both the absolute cost of healthcare and the share of it borne by families have risen--and newly fashionable health-savings plans are spreading from legislative halls to WalMart workers, with much higher deductibles and a large new dose of investment risk for families' future healthcare. Even demographics are working against the middle class family, as the odds of having a weak elderly parent--and all the attendant need for physical and financial assistance have jumped eightfold in just one generation.
From the middle-class family perspective, much of this, understandably, looks far less like an opportunity to exercise more financial responsibility, and a good deal more like a frightening acceleration of the wholesale shift of financial risk onto their already overburdened shoulders. The financial fallout has begun, and the political fallout may not be far behind．
Which of the following is the best title for this text?
A.The Middle Class on the Alert
B.The Middle Class on the Cliff
C.The Middle Class in Conflict
D.The Middle Class in Ruins
[单选题]Many of the activities performed during the preliminary investigation are still being conducted in（ ）, but in much greater depth than before. During this phase, the analyst must become fully aware of the （2）and must develop enough knowledge about the （ ） and the existing systems to enable an effective solution to be proposed and implemented. Besides the （ ）for process and data of current system, the deliverable from this phase also includes the （ ）for the proposed system.
（2）应选（ ）。
A. main symptom
A.root problem
B.final blueprint
C.
D.ata specification
[单选题]During the systems analysis phase, greater user involvement usually results in better communication, faster development times, and more satisfied users.There are three common team-based approaches that encourage system users to participate actively in various development tasks.1) () is a popular fact-finding technique that brings users into the development process as active participants. The end product of the approach is a requirements model.2) () is a team-based technique that speeds up information systems development and produces a functioning information system. The approach consists of several phases. The (请作答此空) combines elements of the systems planning and systems analysis phases of tbe SDL
C.Users, managers, and IT staff members discuss and agree on business needs, project scope, constraints, and system requirements. During (), users interact with systems analysts and develop models and prototypes that represent all system processes, outputs, and inputs.3) () attempt to develop a system incrementally by building a series of prototypes and constantly adjusting them to user requirements.
A.requirements planning phase
需求计划阶段
B.business process modeling
业务流程建模
A.business process improvement
B.业务流程优化
C.scope definition phase
D.范围定义阶段
[单选题]During the systems planning phase. a systems analyst conducts a（ ）activity to study the systems request and recommend specific action. After obtaining an authonzation to proceed. the analyst interacts with( ) to gather facts about the problem of opportunity, project scope and constraints, project benefits, and estimated development time and costs. In many cases. thesystems request does not reveal the underying problem, but only a symptom. A popular technique for investigating causesand effects is called (请作答此空)The analyst has analyzed the problem or opportunity. defined the project scope and constraints, and performed ( )to evaluate project usability, costs, benefits, and time constraints. The end product of the activity is ( ) .The main content must include an estimate of time .staffing requrements, costs, benefits, and expected results for the next phase of the SDLC
A.fishbone diagram
B.PERT diagram
C.Gantt diagram
D.use case diagram
