简述互联网的接入方式。

下列各量中，与检验电荷无关的量是(    )

A．电场强度E

B．电场力F

C．电势能E_P

D．电场做的功W

某酒店工程，建筑面积28700mm，地下1层，地上15层，现浇钢筋混凝土框架结构。经过公开招标，建设单位与甲施工单位按照《建设工程施工合同（示范文本）》GF-2013-0201签订了施工总承包合同。工程施工过程中，发生了如下事件：事件一：某批次框架结构用的钢筋，施工总承包单位认为与上一批次已批准使用的是同一厂家生产的，没有进行进场复验等质量验证工作，直接投入了使用。事件二：7月份遇到罕见特大暴雨，导致全场停工，影响总工期10天；8月份又遇到季节性降雨，导致全场停工，影响总工期3天。施工单位向建设单位提出工期索赔13天。事件三：在竣工验收时，建设单位要求对已隐蔽的装饰基层重新剥离进行复验，施工单位认为施工过程中已按要求经监理工程师验收合格，故拒绝再次剥离开检查。经总监理工程师调解，停工2天后施工单位同意复验，复验结果满足设计及规范要求。施工单位上报停工2天、复验后重新恢复造成工期延误6天的两份工期索赔。事件四：工程完工后进行室内环境污染物浓度检测，结果不达标，经整改后再次检测达到相关要求。

事件一中，施工单位的做法是否妥当？列出钢筋质量验证时材质复验的主要内容。

学生管理工作的重要性说明它在学校整体工作中应居于中心地位。(　　)

下列人员中，可以作为保证人的有 ( )。

A．胡某无经济来源的父母

B．胡某在某公司任经理的妻子

C．胡某上初中的儿子

D．胡某在某公司任职的姐姐

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)

5（）

A. meditating on

B. imposing on

C. tangling with

D. dealing with