关于中央性和边缘性颌骨骨髓炎比较，下列哪项是错误的

A．中央性颌骨骨髓炎以弥漫型为主，而边缘性多为局限型

B．中央性颌骨骨髓炎感染来源于根尖炎、牙周炎，而边缘性来源于下颌智齿冠周炎

C．中央性颌骨骨髓炎可出现多数牙松动，边缘性无牙松动

D．中央性颌骨骨髓炎病变多在下颌角，边缘性多在于下颌骨体

E．慢性期，中央性颌骨骨髓炎可有大块死骨形成，边缘性则仅小死骨块甚至骨质增生硬化

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.

15（）

A.creation

B.expectation

C.perception

D.preference