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问题 解答题

已知3m=a，3n=b，分别用a、b表示3m+n和32m+2n．

答案

∵3m=a，3n=b

∴3m+n=3m?3n=ab；

32m+2n=32m?32n=（3m）2?（3n）2=a2b2．

单项选择题 案例分析题

患儿，10天，今洗澡时发现双小腿皮肤冷硬而就诊。系第1胎，孕36周顺产，出生体重2.4kg，生后第2天皮肤稍黄，近2天黄疸有所加深，家长诉无发热，吸奶好。查体：体温35.5℃，呼吸40次/分，脉搏120次/分，全身皮肤中度黄染，无发绀，双肺呼吸音清，无啰音，心音有力。腹平软，脐部少许分泌物，脐周皮肤微红，肝右肋下2cm，质软，脾未扪及。检查结果：白细胞6×109/L，中性粒细胞0.52，淋巴细胞0.48，ESR15mm/h。血培养结果尚未回报。

最重要的处理除行复温外还应（）

A.注意热能的补充

B.使用血管活性药物

C.输新鲜血

D.静脉使用广谱抗生素

E.给氧
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单项选择题

During the past years, intelligent technology has evolved (116) three generations. The first was characterized by tools such as prolog and OPS. prolog is a simple backward-chaining environment, and OPS is a simple forward-chaining environment. This led to the second generation of knowledge-engineering environments. Its goal was to model, prototype and construct (117) systems.
All three generations were oriented toward generic (118) and represented generalized implementation environments for the construction of expert systems. knowledge bases and AI applications.
Some of the solution-oriented products are also seamlessly integrated with generic knowledge-engineering environments, permitting end users to add (119) rules and objects, as well as predefined knowledge-based logic to address problems in manufacturing simulation.
Marketplace orientation is rapidly (120) toward solution-oriented intelligent product environments. the fourth generation represents a new line of thinking and ’ develop-merit by commercial fu-ms. will reduce the cost risk and development time associated with problem solving.

A．custom

B．knowledge

C．through

D．problem solving
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