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问题 选择题

胡 * * * * 在中 * * 党第十七届中央纪律检查委员会第三次全体会议上讲话强调，必须坚持不懈地加强领导干部党性修养，使各级领导干部始终保持 * * 党人的政治本色，发扬党的光荣传统和优良作风，树立和坚持正确的事业观、工作观、政绩观，以良好的作风带领广大党员、群众迎难而上、锐意改革、共克时艰。树立和坚持正确的“三观”，必须

①坚持全心全意为人民服务的宗旨    ②贯彻落实科学发展观 

③加强党的执政能力建设            ④把党的主张上升为国家意志

A．①②③

B．①③④

C．②③④ `

D．①②④

答案

答案：A

单项选择题

紫外一可见吸收分光光度计接通电源后，指示灯和光源灯都不亮，电流表无偏转的原因不包括（）。

A.电源开关接触不良或已坏

B.电流表坏

C.保险丝断

D.电源变压器初级线圈已断
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单项选择题

Artificial intelligence (AI) ,an interdisciplinary field, is usually regarded as a branch of computer science, dealing with models and systems for the performance of functions generally associated with human intelligence, such as (71) and learning.

In AI, knowledge-based system is an information (72) system that provides for solving problems in a particular domain or application area by drawing inferences from a knowledge base. Moreover, some knowledge-based systems have learning capabilities.

Expert system (ES) indicates the knowledge-based system that provides for solving problems in a particular domain or application area by drawing inferences from a knowledge base developed from human (73) . Some expert systems are able to (74) their knowledge base and develop new inference rules based on their experience with previous problems. The term "expert system" is sometimes used (75) with "knowledge-based system", but should be taken to emphasize expert knowledge.

（71）处填（）。

A．inferring

B．reasoning

C．deriving

D．proving
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