从干扰作用发生的时刻起,到系统又建立平衡状态时止,过渡过程所经历的时间是()。
A.最人偏差
B.衰减比
C.余差
D.过渡时间
参考答案:D
背景资料:
2015年某业主将一栋大型剧院建筑的拆除任务,发包给无拆除资质的防腐保温劳务公司,由于不了解拆除作业的危险性。操作人员决定先拆混凝土梁,后拆混凝土板。操作时,现场无安全人员在场,也无安全措施。在梁拆至一半时全部楼板塌下,造成多人伤亡。事后检查该施工方法无方案,无交底,公司也无施工方案管理制度。
拆除作业的施工方案由()批准后,方可施工。
A、安全员
B、项目经理
C、企业技术负责人
D、项目技术负责人
Attempts to understand the relationship between social behavior and health have their origin in history. Dubos (1969) suggested that primitive humans were closer to the animals (1) they, too, relied’upon their instincts to stay healthy. Yet some primitive humans (2) a cause and effect relationship between doing certain things and alleviating (3) of a disease or (4) the condition of a wound. (5) there was so much that primitive humans did not (6) the functioning of the body, magic became an integral component ofthe beliefs about the causes and cures of heath (7) Therefore it is not (8) that early humans thought that illness was caused (9) evil spirit. Primitive medicines made from vegetables or animals were invariably used in combination with some form of ritual to (10) harmful spirit from a diseased body.
One of the. earliest (11) in the Western world to formulate principles of health care based upon rational thought and (12) of supernatural phenomena is found in the work of the Greek physician Hippocrates. The writing (13) to him has provided a number of principles underiying modern medical practice. One of his most famous (14) , the Hippocratic Oath, is the foundation of contemporary medical ethics.
Hippocrates also argued that medical knowledge should be derived from a (15) of the natural science and the logic of cause and effect relationships. In this (16) thesis, On Air, Water, and Places, Hippocrates pointed out that human well-being is (17) by the totality of environmental (18) : living habits or lifestyle, climate, geography of the land, and the quality of air, and food. (19) enough, concerns about our health and the quality of air, water, and places are (20) very much written in twentieth century.
2()
A.identified
B.recognized
C.admitted
D.esteemed