问题 问答题 简答题

比较特发性血小板减少性紫癜和血友病的诊断检查结果有何不同。

答案

参考答案:

(1)特发性血小板减少性紫癜:血小板计数常降低,急性型常<20XlO9/L,慢性型约为(30~80)×l09/L。白细胞数正常。出血时间延长,凝血时间正常,血块收缩不良。出血多者可有贫血。

(2)血友病:凝血时间延长(轻型者正常),凝血酶原消耗不良,部分凝血活酶时间延长,凝血活酶生成试验异常。出血时间、凝血酶原时间和血小板正常。

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单项选择题

Social control refers to social processes, planned or unplanned, by which people are taught, persuaded, or forced to conform to norms. In every society, some punishments or negative sanctions are established for deviant behavior. Without deviant behavior there would not be need for social control and without social control there would not be a way of recognizing the boundary between the acceptable and the unacceptable.

Social control may be either formal or informal. Informal mechanisms include expressions of disapproval by significant others and withholding of positive rewards for disapproved behavior. Most people internalize norms in the course of socialization. This is any group’s most powerful protection against deviance, in that the individual’s own conscience operates as an agent of social control. When informal sanctions fail, formal agents of social control may be called upon. In contemporary society, such formal agents and agencies include psychiatry and other mental health professions; mental hospitals; police and courts of law; prisons; and social welfare agencies. All these formal agents function to limit, correct, and control violation of norms. Conflict theorists would also point out that social control agents and systems tend, in any society, to serve the interests of powerful groups and to enforce the norms most beneficial to those who make the rules and who, therefore, define unacceptable behavior.

Social control, whether formal or informal, has a dual function. First, it punishes the wrongdoer and reaff’irms the boundaries of acceptable behavior. Second, and less recognized, it regulates the manner in which deviants are treated.

The perspective from which the author discusses social control is ().

A. biological

B. sociological

C. psychological

D. anthropological