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[安全生产技术]知识点汇集(21) | 2010-10-24 9:55:00
[安全生产技术]知识点汇集(21)
201、300mm以下的短波紫外线可引起紫外线眼炎。
202、红外线照射可以引起白内障。
203、一般机器的外形常设计成横向长方形。
204、疲劳分为肌肉疲劳和精神疲劳两种。
205、能力是指一个人完成一定任务的本领。
206、感觉是大脑对直接作用于感觉器官的客观事物个别属性的反映。
207、知觉则是大脑对感觉的客观事物的整体反映,即对感觉到的客观事物所作的反映。
208、观察是有目的、有计划,比较持久地认识某种对象的知觉过程,是一个知觉、思维、言语等综合作用的智力活动过程,它在感知中占有很重要的地位。
209、人们全面、深入、正确的观察事物的能力,叫做观察力。观察力是智力结构的重要组成因素之一。
210、注意是指心理活动对一定事物或活动的指向或集中。
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