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问题 填空题

为验证Fe、Ag、Cu的活动性顺序，小红同学用了三种试剂（其中只有一种盐溶液）进行实验，小朗同学用了与小红完全不同的三种试剂（其中有两种盐溶液）进行实验，她们都取得了相同的实验结果．请写出两位同学在实验中所用的试剂的化学式：

（1）小红同学______；（2）小朗同学______．

答案

在金属活动性顺序中，Fe＞Cu＞Ag，铁能和铜盐溶液反应，而银不能与铜盐溶液反应，故可以使用Fe、Cu（NO3）2、Ag；铜不能与亚铁盐反应，能与银盐溶液反应，故可以使用Fe（NO3）2、Cu、AgNO3；

故填：（1）Fe、Cu（NO3）2、Ag；（2）Fe（NO3）2、Cu、AgNO3．

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.

16（）

A.durable

B.classic

C.thorough

D.immediate
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多项选择题

业主方的项目管理服务于业主的利益，其项目管理的目标包括（）。

A.投资目标

B.设计目标

C.质量目标

D.进度目标

E.成本目标
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