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CD 音质数字音频信号的数据率是 ( kB/S。
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彩__信号的数字化过程中图像的子采样技术通过减少的采样频率来降低数据量以下属于标准子采样方案的有其中子采样方案得到的数据量是相同的 ①422 ②200 ③444 ④444 ⑤420 彩__信号的数字化过程中图像的子采样技术通过减少的采样频率来降低数据量以下属于标准子采样方案的有其中子采样方案得到的数据量是相同的
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Observe that for the programmeras for chef the urgency of the patron顾客may govern the scheduled completion of the taskbut it cannot govern the actual completion.An omelette煎鸡蛋promised in two minutesmay appear to be progressing nicely.But when it has not set in two minutesthe customer has two choices-waits or eats it raw.Software customers have had choices. Now I do not think software have less inherent courage and firmness than chefsnor than other engineering managers.But false to match the patron’s desired date is much more common in our discipline than elsewhere in engineering.It is very to make a vigorousplausibleand job risking defense of an estimate that is derived by no quantitative methodsupported by little dataand certified chiefly by the hunches of the managers. Clearly two solutions are needed.We need to develop and publicize productivity figuresbug-incidence figuresestimating rulesand so on.The whole profession can only profit from such data.Until estimating is on a sounder basisindividual managers will need to stiffen their backbones and defend their estimates with the assurance that their poor hunches are better than wish derived estimates. Observe that for the programmeras for chef the urgency of the patron顾客may govern the scheduled completion of the taskbut it cannot govern the actual completion.An omelette煎鸡蛋promised in two minutesmay appear to be progressing nicely.But when it has not set in two minutesthe customer has two choices-waits or eats it raw.Software customers have had choices. Now I do not think software have less inherent courage and firmness than chefsnor than other engineering managers.But false to match the patron’s desired date is much more common in our discipline than elsewhere in engineering.It is very to make a vigorousplausibleand job risking defense of an estimate that is derived by no quantitative methodsupported by little dataand certified chiefly by the hunches of the managers. Clearly two solutions are needed.We need to develop and publicize productivity figuresbug-incidence figuresestimating rulesand so on.The whole profession can only profit from such data.Until estimating is on a sounder basisindividual managers will need to stiffen their backbones and defend their estimates with the assurance that their poor hunches are better than wish derived estimates.
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