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问题 选择题

为了使教室内的学生上课免受周围环境噪声干扰，下列方法中有效合理的是（　　）

A．每个学生都戴个防噪声耳罩

B．将教室的窗户打开

C．在教室内安装噪声监控器装置

D．在教室周围植树

答案

A、每个学生都戴个防噪声耳罩能减弱噪声，但却无法正常听课，有效但不合理，不符合题意；

B、将教室的窗户打开只会增大噪声，说法错误，不符合题意；

C、在教室内安装噪声监控器装置可监测噪声的大小，但不能减弱噪声，不合理，不符合题意；

D、在教室周围植树可以有效的在噪声的传播过程中减弱噪声，选项正确，符合题意．

故选D．

单项选择题

膀胱肿瘤其超声检查的主要目的不是为了（）

A.肿瘤的早期诊断

B.肿瘤的大小

C.肿瘤的分期

D.肿瘤的数目

E.肿瘤的位置
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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.

1（）

A. in that

B. now that

C. because

D. so that
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