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A new study claiming to document a connection between violence on television and violence in real life is already coming under attack from academics. They say that the author is demanding action on his report before producing detailed findings to substantiate it.(47) Dr. William Belson told the British Association for the Advancement of Science in Birmingham last week that his research suggested that boys exposed to high levels of television violence were 50 percent more likely to commit acts of violence than boys who had not been exposed.His 110,000 pounds survey, paid for by CBS, the American television company, studied more than 15,000 London boys aged between 12 and 16. He closed his paper with a call for immediate action on his recommendations to reduce levels of TV violence and specific kinds of violence which he claimed were more damaging than others. His recommendations were enthusiastically endorsed by Mrs. Mary Whitehouse.Social scientists familiar with the field have a number of specific queries about Belson’s work. (48) They pointed out that a statistical technique invented by him and central to his research has been criticized by some academics in the past. Robin MrCorn, of the Mass Communication Research Centre at Leicester University, says," Self reporting—asking the subject to give his own account of the evidence is notoriously unreliable. Studies have put the possible error as high as 20 percent, and we don’t know what checks there were in this work. The fact that Belson paid the boys may’ have had an influence. Without the full data, it can’t be checked."McCorn adds:" His questions on the programmes go back 12 years. If the boys were aged between 13 and 16 it means the oldest was only four years old when the first programmes were broadcast. How reliable is the memory of a child that young likely to be on the programmes he watched Dr. Belson may have answers, but we just don’t know."(49) The Nelson affair highlights the difficulties faced by researchers into television violence-problems so severe that at least one British group has withdrawn from the field completely. "It’s impossible to do serious scientific work in his area now," says Robin McCron. "It has moved out of the academic world and it has been taken over by pressure groups and politics."Indeed, experience in television research in America reveals how treacherous this field has become. (50) Results of nervous projects there have been found, at worst, contradictory, at best, inconclusive. Dr. William Belson told the British Association for the Advancement of Science in Birmingham last week that his research suggested that boys exposed to high levels of television violence were 50 percent more likely to commit acts of violence than boys who had not been exposed.

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顺发食品加工公司是一家国有企业,2008年发生以下事项:(1) 1月,该企业新领导班子上任后,作出了精减内设机构等决定,将会计科撤并到企业管理办公室(以下简称“企管办”),同时任命企管办主任王某兼任会计主管人员。会计科撤并到企管办后,会计工作分工如下:原会计科会计继续担任会计;原企管办工作人员、王某的女儿担任出纳工作。企管办主任王某自参加工作后一直从事文秘工作,为了使王某尽快胜任会计主管人员岗位,企业同意王某半脱产参加会计培训班,并参加2009年会计从业资格考试。(2) 2月,原会计科长与王某办理会计工作交接手续,人事科长进行监交。(3) 6月,档案科会同企管办对企业会计档案进行了清理,编造会计档案销毁清册,将保管期已满的会计档案按规定程序全部销毁,其中包括一些保管期满但尚未结清债权债务的原始凭证。(4) 8月,经该企业负责人批准,某业务往来单位因业务需要查阅了该企业2007年有关会计档案,对有关原始凭证进行了复制,并办理了登记手续。(5) 10月,企管办在例行审核有关单据时,发现一张购买计算机的发票,其“金额”栏中的数字有更改现象,经查阅相关买卖合同、单据,确认更改后的金额数字是正确的,于是要求该发票的出具单位在发票“金额”栏更改之处加盖出具单位印章之后,该企业予以接受并据此登记入账。请根据会计法律制度的有关规定,回答下列问题: 该企业撤并会计机构、任命会计主管人员、会计工作岗位分工是否有违反法律规定之处分别说明理由

IEEE 802.3标准中MAC子层和物理层之间的接口,不包括()。

A. 发送和接收帧
B. 载波监听
C. 启动传输
D. 冲突控制

数据库发展的最新形式是()。

A. 个人计算机数据库
B. 局域网版本数据库
C. Internet版本数据库
D. 建立在网络基础上的分布式数据库

中国汽车工业协会发布的2009年4月份中国汽车产销数据显示,在其他国家汽车销售进一步疲软的情况下,国内乘用车销量却持续上升,当月销量已达83.1万辆,比3月份增长7.59%,同比增长37.37%。 乘用车细分为基本型乘用车(轿车)、多功能车(MPV)、运动型多用途车(SUV)和交叉型乘用车。其中,轿车销量比3月份增长8.3%,同比增长33.04%;MPV销量比3月份下降3.54%,同比下降4.05%;SUV销量比3月份增长19.27%,同比增长22.55%;交叉型乘用车销量比3月份增长3.62%,同比增长70.66%。轿车、MPV、SUV和交叉型乘用车销量占4月份乘用车总销量的比重分别为71%、2%、6%和21%。 关于2009年3月份各种车型销量在总销量中所占比重的描述,以下描述正确的是( )。

A. 交叉型乘用车低于21%
B. SUV超过6%
C. MFV超过2%
D. 轿车超过71%

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