问题 问答题 简答题

简述卸车工艺的注意事项与要求。

答案

参考答案:

(1)作业前进行盘泵,防止离心泵抽空。

(2)作业中严格控制流速,汽油卸车初始流速不大于1m/s,正常流速不大于3m/s。

(3)利用可燃气体测爆仪检测周围气体浓度,超出标准立即停止作业,检查是否存在跑冒滴漏现象。

(4)作业过程中注意检查静电接地是否良好。

(5)作业人员严格执行操作规程,佩戴棉手套,防止事故发生。

单项选择题
单项选择题

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.

5()

A.While

B.Although

C.Provided

D.Since