问题 多项选择题

生产的火灾危险性,可按生产的火灾危险性分类表分为五类,其中甲生产类别是使用或产生______物质的生产

A.闪点大于28℃的液体

B.爆炸下限大于等于10%的气体

C.在密闭设备内操作温度等于或超过物质本身自然点的生产

D.常温下能自行分解既能导致迅速自燃或爆炸的物质

答案

参考答案:B,C,D

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.

Which of the following statements about primary cooperation is supported by information in the passage

A.It was limited in prehistoric times.

B.It is usually the first stage of cooperation achieved by a group of individuals attempting to cooperate.

C.It is an ideal that can never be achieved.

D.It is most commonly seen among people who have not yet developed reading and writing skills.

多项选择题