CRH2型动车组自动打开头罩功能失效时如何检查处理?

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)

19（）

A.functions

B.plays

C.makes

D.leads

角膜异物的主要表现为

A．无明显不适

B．结膜下出血

C．明显的刺激症状

D．前房出血

E．分泌物增多

在利用自由落体“验证机械能守恒定律”的实验中，

（1）下列器材中不必要的一项是       （只需填字母代号）．

A．重物    B．纸带     C．天平    D．毫米刻度尺

（2）关于本实验的误差，说法不正确的一项是            

A．选择质量较小的重物，有利于减小误差

B．选择点击清晰且第1、2两点间距约为2mm的纸带，有利于减小误差

C．先松开纸带后接通电源会造成较大的误差

D．本实验产生误差的主要原因是因为重物在下落过程中不可避免地受到阻力的作用

（3）如图所示为实验得到的一条点迹清晰的纸带，把第一个点记做O，另选连续的4个点A、B、C、D作为测量的点．经测量知道A、B、C、D各点到O点的距离分别为62.78cm、70.00cm、77.58cm、85.52cm．根据以上数据重物由O点运动到B点，重力势能的减少量等于          J，动能的增加量等于            J。（已知所用重物的质量为1.00kg，当地重加速度g=9.80m/s²，结果取3位有效数字。）

在我国的古代四大发明向西方传播的过程中，有突出贡献的是 [ ]

A．阿拉伯商人

B．中国航海家

C．意大利传教士

D．波斯人

我国现行的学校教育系统，在类别上包括（）。

A.基础教育体系

B.职业技术教育体系

C.高等教育体系

D.成人继续教育体系

E.特殊教育学校系统