题目内容

在7位的ASCII码的最高位增加一位奇校验位就构成8位奇校验码。若大写字母K的十六进制奇校验码为CB，则大写字母E的十六进制奇校验码为(5)。

A. C5
B. 45
C4
D. 44

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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.

A. inferring
B. reasoning
C. deriving
D. proving

【B6】

A. of
B. that
C. about
D. in

【B20】

A. seldom
B. often
C. certainly
D. possibly

对在西部地区新办交通、电力、水利、邮政、广播电视企业，可以享受企业所得税如下优惠政策：内资企业自开始生产经营之日起，第1年至第2年免征企业所得税，第3年至第5年减半征收企业所得税。()

A. 正确
B. 错误