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（）is a technique used for illumination behind the liquid crystal display that makes LCDs easier to read.
- A、Frontlight
- B、Backup Power
- C、Cathode ray tube
- D、Backlight
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115 The technique most commonly used to determine the profitability of a project includes _____ methods.A. Net present value (NPV).B. Return on investment (ROI).C. Discounted cash flow (DCF)D. Payout time and risk sensitivity analysis.E. All of the above
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A variety of tools is available to help the analyst to discover the users' true needs.These tools are grouped into three broad techniques that are based on the degree of change anticipated in the to-be system . Business process（71） is used when the basic business Requirements outlined in the system request focus on employing computer technology in some aspect of the business process. Two popular activities used in the technique are（72）. Business process（73）means that the basic business requirements target moderate changes to the organization' s operations.
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A variety of tools is available to help the analyst to discover the users' true needs.These tools are grouped into three broad techniques that are based on the degree of change anticipated in the to-be system . Business process（71） is used when the basic business Requirements outlined in the system request focus on employing computer technology in some aspect of the business process. Two popular activities used in the technique are（72）. Business process（73）means that the basic business requirements target moderate changes to the organization' s operations.
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C.The application of this technique seems to be merely an illusion
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A.Developing the technique is not as easy as it seems.
B.It is not so urgent to perfect the technique before 2020.
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D.The application of this technique would be unaffordable.
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Which two statements are true about the role of split horizon？（）A、It is a function used by routing protocols to install routes into routing tableB、It is a function that prevents the advertising of routes over an interface that the router is usingto reach a routeC、Its function is to help avoid routing loops.D、It is a redistribution technique used by routing protocols
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using a 2-1/2 inch hoseB
there is an outlet for the smoke and heatC
the fire is totally contained by the ship's structureD
at least two fog streams can be used
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单选题According to the passage, which technique is not used by advertisers to get our attention?A
A product may be filmed or photographed to make it appear better.B
A product may be presented as “unique”, “supreme”C
A product may claim to be “new” or “improved”.D
A product may be sold at a discount.
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多选题Which two statements are true about the role of split horizon？（）AIt is a function used by routing protocols to install routes into routing tableBIt is a function that prevents the advertising of routes over an interface that the router is usingto reach a routeCIts function is to help avoid routing loops.DIt is a redistribution technique used by routing protocols
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单选题（）is a technique used for illumination behind the liquid crystal display that makes LCDs easier to read.A
FrontlightB
Backup PowerC
Cathode ray tubeD
Backlight
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