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问题 选择题

平行四边形不一定具备的性质是（　　）

A．对角互补

B．对边相等

C．对角相等

D．对角线互相平分

答案

根据平行四边形的性质可知：B、C、D均是平行四边形的性质，唯有A是平行四边形不一定具备的性质．

故选A．

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 reaffirms the boundaries of acceptable behavior. Second, and less recognized, it regu lates the manner in which deviants are treated.

In the third paragraph, "a dual function" refers to________.

A．formal and informal

B．rewards and penalties

C．approval and disapproval

D．clarification and regulation
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单项选择题

手动铺砂法测试主要内容包括：①用推平板摊铺量砂呈圆形；②选择测点；③将量砂倒在测点路面上；④圆筒中装满量砂；⑤清扫测点附近路面；⑥准备量砂；⑦钢板尺量测圆直径；正确的操作顺序为（）。

A．⑤②⑥③④①⑦

B．⑥④②⑤③①⑦

C．⑥②⑤④③①⑦

D．⑤②⑥④③①⑦
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