Children in the United States are
exposed to many influences other than that of their families. Television is the
most significant of these influences, because the habit of watching television
usually begins before children start attending school. And, by the time that the
average child finishes high school, he or she will have spent 18,000 hours in
front of a television set as opposed to 12,000 hours in a classroom. Parents are concerned about these figures. They are also concerned about the lack of quality in television programs for children. The degree of violence in many of these shows also worries them. Even if it is unreal--a cartoon cat beating up a cartoon mouse with a baseball bat--this violence may have a negative effect on the young minds exposed to it. Studies indicate that, when children are exposed to violence, A. children may imitate what they have seen on television B. a cartoon program is not harmful if it is not real C. parents are strongly opposed to children watching TV D. the quality of children’s programs is not the parents’ main concern [单项选择]矿井防治粉尘危害的第一责任者是()
A. 矿长 B. 区长 C. 队长 [填空题]The girls in this sixth grade class in East Palo Alto, California,
all have the same access to computers with boys, but researchers say, (1) by the time they get to high school, they are victims of what the researchers call major new gender gap in technology. Janice (2) Weinman of the American Association of University Women says, "Girls tend to be more comfortable than boys with the computer. (3) They use it more for word processing rather than for problem solving, rather than to discover new ways which to understand information." (4) After re-examining a thousand studies, the American Association of University Women researchers found that girls make up only a small percentage of students in computer science classes. Girls consistent (5) rate themselves significantly lower tha [判断题]同一体积的物体比容越大,表明物质越轻,密度越大表明物质越重。
A.正确 B.错误 [单项选择]
Throughout the 19th century and into the 20th, citizens of the United States maintained a bias against big cities. Most lived on farms and in small towns and believed cities to be centres of (1) , crime, poverty and moral (2) Their distrust was caused, (3) , by a national ideology that (4) farming the greatest occupation and rural living (5) to urban living. This attitude (6) even as the number of urban dwellers increased and cities became an essential (7) of the national landscape. Gradually, economic reality overcame ideology. Thousands (8) the precarious (不稳定的) life on the farm for more secure and better paying jobs in the city. But when these people (9) from the countryside, they carried their fears and suspicions with them. These new urbanities, already convinced that cities were (10) with great problems, eagerly (11) the progressive reforms that promised to bring order out of th [单项选择]癫痫持续状态是指()
A. 连续单纯部分发作 B. 复杂部分性发作持续数天 C. 一侧肢体间断抽搐 D. 长期用药抽搐仍经常发作 E. 全面性强直-阵挛发作频繁出现,间歇期仍意识不清 [单选题]FHH-2(Ⅱ型防河洪直线杆基础)子模块适用条件符合表8-3土质类型、洪水冲刷水深(Hp)、平均流速(Vc)的规定,即:冲刷深度为:
A.等于1 B.小于1.1 C.等于或大于1.1 D.大于1.1 [单选题]护轨与基本轨头部间净距:在有砟桥上,其净距为500mm,允许误差为()。
A.+3mm,-3mm B.+10mm,-10mm C.+5mm,-5mm D.+10mm,-5mm [多选题]公共航空运输企业分公司或基地,未按规定设立或指定航空安 保机构,配备人员的,可能面临( )处罚。
A.停业整顿 B.暂停新增航线申请 C.责令限期改正 D.逾期未改正的,处以警告或一万元以下罚款 [判断题]安全检查表法可以提供事故后果分级
[单选题]半导体只读存储器(ROM)与半导体随机存储器(RAM)的主要区别在于( )。
A.ROM可以永久保存信息,RAM在掉电后信息会丢失 B.ROM掉电后,信息会丢失,RAM则不会 C. ROM是内存储器,RAM是外存储器 D.RAM是内存储器,ROM是外存储器 [判断题]操作时要严格按照操作票的顺序进行,严禁漏操作或重复操作。
A.正确 B.错误 [单选题] ()应当组织有关部门针对本行政区域内的火灾特点制定应急预案,建立应急反应和处置机制,为火灾扑救和应急救援工作提供人员装备等保障。。
A.县级以上地方人民政府 B.市级以上地方人民政府 C.县级以上人民政府安全生产监督管理部门 D.市级以上人民政府安全生产监督管理部门 [单项选择]男孩,9岁,因水肿、血尿诊断为急性肾炎入院,症状好转后出院随访,8周后C3补体仍明显低于正常,应考虑为()
A. 狼疮性肾炎 B. IgA肾病 C. 膜增生性肾炎 D. 膜性肾病 E. 乙肝病毒相关肾炎 [单项选择]自然人AAA级客户即综合得分多少分(含)以上。()
A. 88 B. 90 C. 95 D. 98 [多选题]根据《建设工程安全生产管理条例》下列说法正确的是( )。
A.工程监理单位应当审查施工组织设计中的安全技术措施或者专项施工方案是否符合工程建设强制性标准 B.设计单位和注册建筑师等注册执业人员应当对其设计负责 C.工程监理单位在实施监理过程中,发现存在安全隐患的,应当要求施工单位整改;情况严重的,应及时报告建设单位,但没有权利要求施工单位暂时停止施工 D.工程监理单位在实施监理过程中,发现承包人的施工进度计划不符合合同要求的,应责令修改后重新提交 E.工程监理单位和监理工程师应当按照法律、法规和工程建设强制性标准实施监理,并对建设工程安全生产承担监理责任 [简答题]物资数量的验收方法有几种?
[单选题]错误办理行车凭证发车或耽误列车系指与邻站( ),但由于未交、错交、未拿、错拿、漏填、错填行车凭证;自动闭塞、自动站间闭塞、半自动闭塞区间未开放出站(进路)信号机发车或耽误列车。
A.已办妥闭塞手续 B.未办妥闭塞手续 C.已发车 [单选题]M40代表焦炭的( )。
A.热态强度 B.抗碎强度 C.耐磨强度 我来回答: 提交
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