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问题 解答题

甲、乙两件服装的成本共500元，商店老板为获取利润，决定将甲服装按50％的利润定价，乙服装按40％的利润定价，甲、乙两件服装的定价和为730元．在实际出售时，应顾客要求，两件服装均按9折出售，求甲、乙两件服装的实际获利各是多少元?

答案

解：设甲服装的成本X元，乙服装的成本Y元 

解得

甲服装的实际获利是0.9×1.5×300-300=105元，

乙服装的实际获利是0.9×1.4×200-200=52元

答：甲服装的实际获利是105元， 乙服装的实际获利是52元。

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.

（75）处填（）。

A．synonymously

B．equivalently

C．substitutionally

D．homomorphously
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多项选择题

下面选项中符合舟山锣鼓特点的是（）。

A.具有浓厚海洋文化气息的民族器乐

B.歌词以“也哕嗬”等语气词为主体

C.近洋号子音调粗犷、激昂雄壮

D.表现了东海渔民粗犷豪爽的性格、海上生活壮阔惊险的场面和渔民节日热烈欢腾的气氛

E.可统一劳动节奏、协调劳动动作、调节劳动情绪
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