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常用的分光光度分析方法有哪几种？各有什么特点？

答案

参考答案：

工作曲线性，适用于多个样品的系列分析。

直接比较法，适用于个别样品的分析。

标准加入法，适用于组成比较复杂，干扰因素较多的样品。

单项选择题

Anthropology is the study of human beings as creatures of society. It (1) its attention upon those. physical characteristics and industrial techniques, those conventions and values, which (2) one community from all others that belong to a different tradition.

The distinguishing mark of anthropology among the social sciences is that it includes for serious study other societies (3) our own. For its purposes any social (4) of mating and reproduction is as significant as our own. To the anthropologist our customs and those of a New Guinea tribe are two possible social schemes for (5) a common problem, and in so far as he remains an anthropologist he is (6) to avoid any weighting of one (7) the other. He is interested in human behavior, not as it is shaped by one tradition, our own, but as it has been shaped by any tradition (8) He is interested in a wide (9) of custom that is found in various cultures, and his object is to understand the way in which these cultures change and (10) , the different forms through which they express themselves and the (11) in which the customs of any peoples function in the lives of the (12) .

Now custom has not been commonly regarded as a (13) of any great moment. The inner workings of our own brains we feel to be uniquely (14) of investigation, but custom, we have a way of thinking, is behavior at its most commonplace. (15) , it is the other way round. Traditional custom is a mass of detailed behavior more astonishing than (16) any one person can ever evolve in individual actions. Yet that is a rather (17) aspect of the matter. The fact (18) first rate importance is the predominant role that custom (19) in experience and belief, and the very great varieties it may (20)

20（）

A.manifest

B.illustrate

C.reveal

D.indicate
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单项选择题

法国1791年第一部宪法宣布法国为君主立宪制国家，实行三权分立。这部宪法的君主立宪和分权思想是源自：( )

A．盂德斯鸠的思想

B．卢梭的思想

C．格劳秀斯的思想

D．霍布斯的思想
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