热门试题:
[单选题]发电机组并列运行时,必须装设 ,并在机组同步运行后再向负载供电。
A.接地装置
B.防雷装置
C.同期装置
D.同步装置
[单选题]两只额定电压相同的电阻,串联接在电路中则阻值较大的电阻( )。
A. 发热量较大
B. 发热量较小
C. 没有明显变化
D. 不发热
[多项选择](2)在考生文件夹下有一个数据库stsc，其中有数据库表student，使用一对多报表向导制作一个名为 cjb的报表，存放在考生文件夹下。要求：从父表student中选择学号和姓名字段，从子表score中选择课程号和成绩，排序字段选择学号(升序)，报表式样为简报式，方向为纵向。报表标题为“学生成绩表”。
[单项选择]病人的权利不包括（）。
A. 平等医疗权
B. 知情同意权
C. 要求保密权
D. 保管病志权
E. 免除一定社会责任权
[单项选择]
下列各句所涉及的年龄，由小到大排列正确的一项是（）
①余自束发读书轩中
②豆蔻梢头二月初
③既加冠，益慕圣贤之道
④年近知命，位止方州
⑤行行向不惑，淹留隧无成
A. ③①②④⑤
B. ③②①⑤④
C. ②④③①⑤
D. ②①③⑤④
[填空题]As heart disease continues to be number-one killer in the United States, researchers have become increasingly interested in{{U}} (36) {{/U}}the potential risk factors that{{U}} (37) {{/U}}heart attacks. High fat diets and "life in the fast lane" have long been known to contribute to the high{{U}} (38) {{/U}}of heart failure. But according to new studies, the list of risk factors may be{{U}} (39) {{/U}}longer and quite surprising.
Heart failure, for example, appears to have seasonal and{{U}} (40) {{/U}}patterns. A higher percent age of heart attacks occur in cold weather, and more people experience heart failure on Monday than on any other day of the week. In addition, people are more{{U}} (41) {{/U}}to heart attacks in the first few hours after waking. Cardiologists first observed this morning{{U}} (42) {{/U}}in the mid-1980s and have since discovered a number of possible causes. An early-morning rise in blood pressure, heart rate, and concentration of heart{{U}} (43
[判断题]行政机关应当将法律、法规和规范性文件规定的有关行政许可需要提交的全部材料的目录和申请书示范文本等在办公场所公示。 （ ）
A.正确
B.错误
[判断题]安环部负责对车间管辖区域所实施的临时用电作业进行检查。（）
A.正确
B.错误
[单选题]JD-1A型微机联锁系统，实现联锁机的主、备用，即完成本机3个倒机继电器和邻机的3个倒机继电器的采集和驱动的是（）。
A.多功能匹配板
B.机箱控制板
C.驱动板
D.采集板
[单项选择]北方某地新建的综合楼内设有集中空调系统，在地下一层制冷站内设螺杆式冷水机、热交换器、冷冻水泵和冷却水泵等设备，楼上会议室设定风量空调系统，办公室设变风量空调系统。请回答下列问题：
在热交换系统中，为使二次侧热水温度保持在设定范围，应根据下列哪一项设定值来控制一次侧温度调节阀开度( )
A. 一次供水温度
B. 二次供水温度
C. 一次供回水压力
D. 二次供回水压力
[判断题]定位焊缝由于只起装配和固定焊件的作用，所以实际施工中可以选择性能稍差点的焊条。
A.正确
B.错误
[单选题]《供电营业规则》第八十五条规定：以变压器容量计算基本电费的客户，备用变压器属冷备用并经供电企业()的，不收基本电费。
A.核准
B.批准
C.确定
D.加封
[判断题]分配管户人功能不需要考虑风险清收岗是否存在未结束流程或有业务未进行移交。（）
A.正确
B.错误
[单选题]电梯井内首层及首层以上每隔()m 设一道水平安全网。
A.8
B.10
C.15
[单选题]The journal Science is adding an extra round of statistical checks to its peer-review process,editor-in-chief Marcia McNutt announced today.The policy follows similar efforts from other journals,after widespread concern that basic mistakes in data analysis are contributing to the irreproducibility of many published research findings.“Readers must have confidence in the conclusions published in our journal,”writes McNutt in an editorial.Working with the American Statistical Association,the journal has appointed seven experts to a statistics board of reviewing editors（SBoR
E）.Manuscript will be flagged up for additional scrutiny by the journal’s internal editors,or by its existing Board of Reviewing Editors or by outside peer reviewers.The SBoRE panel will then find external statisticians to review these manuscripts.Asked whether any particular papers had impelled the change,McNutt said:“The creation of the‘statistics board’was motivated by concerns broadly with the application of statistics and data analysis in scientific research and is part of?Science’s overall drive to increase reproducibility in the research we publish.”Giovanni Parmigiani,a biostatistician at the Harvard School of Public Health,a member of the SBoRE group.He says he expects the board to“play primarily an advisory role.”He agreed to join because he“found the foresight behind the establishment of the SBoRE to be novel,unique and likely to have a lasting impact.This impact will not only be through the publications in Science itself,but hopefully through a larger group of publishing places that may want to model their approach after Science.”John Ioannidis,a physician who studies research methodology,says that the policy is“a most welcome step forward”and“long overdue.”“Most journals are weak in statistical review,and this damages the quality of what they publish.I think that,for the majority of scientific papers nowadays,statistical review is more essential than expert review,”he says.But he noted that biomedical journals such as Annals of Internal Medicine,the Journal of the American Medical Association and The Lancet pay strong attention to statistical review.Professional scientists are expected to know how to analyze data,but statistical errors are alarmingly common in published research,according to David Vaux,a cell biologist.Researchers should improve their standards,he wrote in 2012,but journals should also take a tougher line,“engaging reviewers who are statistically literate and editors who can verify the process”.Vaux says that Science’s idea to pass some papers to statisticians“has some merit,but a weakness is that it relies on the board of reviewing editors to identify‘the papers that need scrutiny’in the first place”.
Giovanni Parmigiani believes that the establishment of the SBoRE may
A.pose a threat to all its peers.
B.meet with strong opposition.
C.increase Science’s circulation.
D.set an example for other journals.
[判断题]碳刷在使用磨短过程中，弹簧压力也会不同程度减少（）
A.正确
B.错误
[多选题]爱因斯坦说:“我评定一个人的真正价值只有一个标准,即看他在多大程度上摆脱了自我。”对此,正确的理解是( )
A.个人人生价值的大小主要看社会对他的满足程度
B.人生价值的大小取决于“自我”价值实现的程度
C.评价一个人的人生价值主要考察他对社会的贡献
D.对社会贡献越大,摆脱“自我”程度也就越大,个人的人生价值就越大
[判断题]单人操作,是指一人进行的操作。
A.正确
B.错误
[单选题]我国刑法在溯及力问题上采取的原则是( )。
A.从旧原则
B.从新原则
C.从旧兼从轻原则
D.从新兼从轻原则
[判断题]容量在100kVA及以下者，高压侧熔丝按变压器额定电流的2～3倍选择。
A.正确
B.错误
[判断题]钢材是按硫、磷两种有害元素的含量高低来划分质量等级的。
A.正确
B.错误
[单项选择]LINUX交换分区的格式为______。
A. ext2
B. ext3
C. FAT
D. swap
[多选题]一般而言，除应急养护以外的养护工程组织实施的程序有（ ）。
A.前期工作
B.计划编制
C.工程设计
D.工程施工
E.工程报告
[单选题]A.小便频数
A.手足厥逆
B.腰膝疫软
C.大便稀溏
D.久利赤白
E.麻子仁丸的主治证候中有
[单选题]建筑施工企业安全生产许可证被暂扣期间，企业在（）范围内不得承揽新的工程项目。发生问题或事故的工程项目停工整改，经工程所在地有关建设主管部门核查合格后方可继续施工。
A.全省
B.全市
C.全国
D.事故当地
[简答题]客服中心岗为乘客处理票务事务时形体标准是什么？
[多选题]立管压力( )视为工程参数异常。
A.小幅波动
B.逐渐减小
C.突然增大
D.突然减小
[单选题]禁止标志的几何图形为带斜杠的圆环，图形背景为（ ），圆环和斜杠为红色，图形符号为黑色。
A.白色
B.黑色
C.红色
D.蓝色
[多选题]反渗透技术可除去水中的（）。
A.微粒
B.悬浮物
C.有机物质
D.胶体物质
[多选题]热备车转运营列车整备作业，只需进行出库端（ ）试验
A.开关门
B.牵引
C.广播
D.制动
[多项选择]脑器质性精神病是指（）
A. 颅脑CT检查一定有阳性发现
B. 具有明确的生物学病因
C. 病因各异，但可有共同的综合征
D. 脑部有组织形态学方面的改变
E. 常表现有记忆、智能、意识、人格障碍等症状
[不定项选择题]A.矢车菊苷
A.黄芩苷
B.儿茶素
C.橙皮苷
D.芦丁
E.属于黄酮醇的是
[多选题]光学镜的优势有
A.清晰度高
B.兼容多镜片摄像头
C.消毒方式多样
D.防雾
[判断题]当断路器大修时，应检查液压（气动）机构分、合闸阀的阀针是否松动或变形，防止由于阀针松动或变形造成断路器拒动。（）
[单项选择]具有行气止痛、杀虫疗癣功效的药物是（）。
A. 川楝子
B. 丁香
C. 佛手
D. 沉香
E. 香附
[多选题]“十三五”期间，全面深化改革取得重大突破，若干领域实现了（ ）。
A.历史性变革
B.系统性重塑
C.创造性发展
D.整体性重构
