JPEG压缩编码算法______。A.使用DPCM对直流系数(DC)和交流系数(AC

题型:单项选择题

问题:

JPEG压缩编码算法______。

A.使用DPCM对直流系数(DC)和交流系数(AC)进行编码

B.使用DPCM对直流系数(DC)进行编码,使用RLE对交流系数(AC)进行编码

C.使用RLE对直流系数(DC)进行编码,使用DPCM对交流系数(AC)进行编码

D.使用RLE对直流系数(DC

考点:计算机软件水平考试高级系统分析师系统分析师
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下图是一枚为纪念俄国十月革命45周年而发行的邮票《攻打冬宫》。我们纪念十月革命的理由有

①它建立了世界上第一个社会主义国家②它开辟了无产阶级革命的新时代

③它是无产阶级专政的第一次伟大尝试 ④它鼓舞和推动了被压迫民族的解放运动

[ ]

A.①②③   

B.①②④   

C.①③④        

D.②③④

题型:单项选择题

分类单位中,最大的分类单位是(  )

A.界

B.种

C.目

D.科

题型:单项选择题

2009年9月2日召开的国务院常务会议,决定在公共卫生与基层医疗卫生事业单位和其他事业单位实施绩效工资。对事业单位实施绩效工资[ ]

①是对我国现行分配制度的根本性变革②体现了按劳分配的原则③将劳动者付出的劳动数量和质量与个人收入直接联系在一起,有利于激发劳动者的积极性④实现了按劳分配与按生产要素分配的结合

A.①②

B.①③

C.③④

D.②③

题型:单项选择题

以下说法错误的是()。

A、利率市场化使企业的财务成本呈现不确定性

B、利率市场化不利于企业优化融资结构

C、利率市场化对企业的财务管理水平特别是资金经营策略提出了更高的要求

D、利率市场化后中小企业和民营企业有望从银行获得更多的支持

题型:单项选择题


Solving a problem can be broken down into several steps. First, the problem must be identified correctly. Psychologists refer (1) this step as problem representation. For many problems, figuring (2) which information is relevant and (3) is extraneous can be difficult and can interfere (4) arriving at a good solution. Clearly, before a problem can be solved, it must be obvious (5) the problem is, however, this is not as easy (6) it might seem. One obstacle to efficient problem representation is functional fixedness, that is, allowing preconceived notions and even prejudices (7) color the facts. Most people tend (8) see objects and events in certain fixed ways, and by being inflexible in viewing the problem, they may be unable to notice the tools (9) the solution. Once the problem is identified accurately, (10) , the second step consists (11) considering the alternatives for a solution. A common way to evaluate alternatives is to write them (12) and then make a list (13) advantages and disadvantages for each solution. Here again, people may be limited by prior experiences. Often people adopt mental sets (14) lead them to the same problem-solving strategies that were successful for problems (15) the past. Although that can be helpful most (16) the time, sometimes a new situation requires a different strategy. (17) that case, the mental set must be abandoned, (18) new alternatives must be explored.
After the alternatives have been compared, a strategy must be selected (19) among them. One way to avoid becoming mired in the options is (20) try the best option with a view to abandoning it for another (21) the results are unfavorable. This attitude allows many people to move on expeditiously (22) the next step—action. The strategy selected must be implemented and tested. If it solves the problem, no further action is necessary, but if (23) , then the cycle begins again, starting (24) problem identification. By continuing to review the problem (25) repeat the problem-solving steps, the solution can be improved upon and refined.

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