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某一黄土场地进行初步勘察，在一探井中取样进行湿陷性试验，结果见表。试计算黄土的总湿陷量△s(β0＝0.5，不考虑地质分层)。

答案

参考答案：

δs＜0.015为非湿性黄土，δs＜0.015的土层不累计。

自重湿陷量的计算值△zs，从自然地面起算，对δzs＜0.015的土层不累计

△zs＝5.85cm＜7cm，属非自重湿陷性黄土。

计算总湿陷量△s，从地面下1.5m算至基底下5m，即地面下1.5～6.5m，β取1.5。

＝1.5×10.4＝15.6cm

判断题

我们正确的评价自己，做到既不自卑也不自负。[      ]
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单项选择题

Cooperation is the common endeavor of two or more people to perform a task or reach a jointly cherished goal. Like competition and conflict, there are different forms of cooperation, based on group organization and attitudes.
In the first form, known as primary cooperation, group and individual unite. The group contains nearly all of each individual’s life. The rewards of the group’s work are shared with each member. There is an interlocking identity of individual, group, and task performed. Means and goals become one, for cooperation itself is valued.
While primary cooperation is most often characteristic of preliterate societies, secondary cooperation is characteristic of many modern societies. In secondary cooperation, individuals devote only part of their lives to the group. Cooperation itself is not a value. Most members of the group feel loyalty, but the welfare of the group is not the first consideration. Members perform tasks so that they can separately enjoy the fruits of their cooperation in the form of salary, prestige, or power. Business offices and professional athletic teams are examples of secondary cooperation.
In the third type, called tertiary cooperation or accommodation, latent conflict underlies the shared work. The attitudes of the cooperating parties are purely opportunistic; the organization is loose and fragile. Accommodation involves common means to achieve antagonistic goals; it breaks down when the common means cease to aid each party in reaching its goals. This is not, strictly speaking, cooperation at all, and hence the somewhat contradictory term antagonistic cooperation is sometimes used for this relationship.

In the primary cooperation ______.

A. group and individual don’t have to unite
B. the group contains nearly all of each person’s life
C. individuals work for themselves
D. people don’t value cooperation
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