在“用双缝干涉测光的波长”实验中,将测量头的分划板中心刻线与某条亮纹中心对齐,将

题型:实验题

问题:

在“用双缝干涉测光的波长”实验中,将测量头的分划板中心刻线与某条亮纹中心对齐,将该亮纹定为第1条亮纹,此时手轮上的示数如图9所示。然后同方向转动测量头,使分划板中心刻线与第6条亮纹中心对齐,

(1)记下此时图10中手轮上的示数__________mm,求得相邻亮纹的间距Δx为__________mm。

2)已知双缝间距d为2.0×10-4m,测得双缝到屏的距离l为0.700m,

由计算式λ=________,求得所测红光波长为__________nm。

考点:实验:用双缝干涉测量光的波长实验:测定玻璃的折射率
题型:实验题

2004年“关于印发浙江省计价规则和计价依据(2003版)的通知”是由( )印发的。

A.浙江省建设厅

B.浙江省发展与改革委员会

C.浙江省财政厅

D.由浙江省建设厅浙江省建设厅、浙江省发展与改革委员会、浙江省财政厅共同印发的

题型:实验题

多发性硬化最常见的临床表现是()

A.复发-缓解型

B.继发进展型

C.原发进展型

D.进展复发型

E.良性型

题型:实验题

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.

Social control refers to processes by which________.

A.norms are developed

B.norms are enforced

C.people are educated and trained

D.people are rewarded and punished

题型:实验题

励磁系统的稳态增益是指发电机电压快速变化时励磁系统的增益。

题型:实验题

加强对透平油和抗燃油油质的监督,定期进行油质的分析化验,在油质()的情况下,严禁投盘车与机组起动。

A.不合格

B.不用化验

C.合格

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