某500kV双回架空线路的潜供电流为13.3A,潜供电流的自灭时间等于单相自动重合闸

题型:单项选择题

问题:

某500kV双回架空线路的潜供电流为13.3A,潜供电流的自灭时间等于单相自动重合闸无电流间隙时间减去弧道去游离时间,请问无电流间歇时间应为下列哪项数值?(采用经验公式)()

A.0.58s

B.0.78s

C.1.0s

D.1.23s

考点:注册电气工程师发输变电专业注册电气工程师发输变电专业2009年(上)专业知识真题
题型:单项选择题

下列说法正确的是()。

A.从1997年至2003年,我省农村居民人均纯收入的同比增长额与增长幅度都呈逐年上升状态

B.在这次抽样调查的样本中,人均纯收入在1500-4000元的次低收入家庭不足900户

C.2002年,我省农村居民的第一产业收入高于二、三产业收入

D.在这次调查的家庭中。收入前20位的家庭人均纯收入为11693元

题型:单项选择题

在系统结构方面,决策支持系统区分一般信息系统的关键是它有( )。

A.数据库子系统

B.模型库子系统

C.用户对话系统

D.知识库子系统

题型:单项选择题



As crime skyrockets in many communities, people are finally beginning to look for long-lasting effective answers to stem the tide of juvenile crime. Reaching the youth who have committed a crime before they become (1) is an essential step in reversing the crime trend. One (2) may be the establishment of teen court. Teen court is known as a sentencing court for youths who have (3) . Teen courts primarily deal with first-time offenders. After arrest, the young offender must (4) to the charge in juvenile court. With (5) , the offender agrees to be sentenced and abide by the decision of peer jury (6) . Another essential component to teen court is that, as part of the sentence, the offender must sit in on one of more future peer juries to (7) for other offenders. For example, a county teen court in Illinois gives young offenders a chance to (8) their arrests from their permanent record by (9) or other duties ordered by the court. Teen court is not a trial court. All teens admit their guilt and (10) a sentence given to them by a jury of their peers. A judge is present to (11) of the court. The teen court alleviates the strain on the (12) and has been implemented in (13) since the first teen court opened in Odessa, Texas. Beside giving the offender a second chance, it gives the youth (14) in the judicial process.
The purpose of the teen court, aside from sentencing youth offenders, is to (15) both the offenders and the teen volunteers while simultaneously promoting (16) between defendants, the community, and the police. By offering this (17) system, teen court allows those teens who have made a bad decision an opportunity to (18) and learn from it. At the same time those teens learn (19) . The police, the community, and the (20) .

题型:单项选择题

卢梭提出了()的教育目的。

题型:单项选择题

《财政部关于下达2010年金太阳示范工程财政补助资金预算指标的通知》中下达资金的项目未按规定期限完工的,一律收回补助资金;对由于客观原因确实难以按期完工的项目,要明确完工时间,但也不得晚于(),同时补贴标准按()年标准执行。

A.2012年6月30日,2011

B.2011年7月31日,2010

C.2011年8月31日,2011

D.2012年9月30日,2012

更多题库