热门试题:
[单选题]《安全生产事故报告和调查处理条例》规定，事故发生后事故现场有关人员应当（ ）向本单位负责人报告。
A.立即
B.1小时内
C.2小时内
[单选题]某项目，直接材料5193.18万元，直接燃料及动力342.09万元，直接工资及福利费121.75万元，制造费用422.85万元，管理费用137.6万元，财务费用105.77万元，营业费用415.6万元，生产成本 万元。
A.7161.69
B.6738.84
C.5657.02
D.6079.87
[多选题]（ ）的二次回路的电缆均应使用屏蔽电缆，电缆的屏蔽层两端接地，严禁使用电缆内的备用芯线替代屏蔽层接地。
A.微机型继电保护装置之间
B.保护装置至开关场就地端子箱之间
C.保护屏至监控设备之间
D.一次设备引出线至端子箱
[单选题]预计某公司今年末每股收益为2元，每股股息支付率为90％，并且该公司以后每年每股股利将以5％的速度增长。如果某投资者希望内部收益率不低于10％，那么，（ ）。
Ⅰ他在今年年初购买该公司股票的价格应小于18元
Ⅱ他在今年年初购买该公司股票的价格应大于38元
Ⅲ他在今年年初购买该公司股票的价格应不超过36元
Ⅳ该公司今年年末每股股利为1．8元
A.Ⅰ、Ⅳ
B.Ⅱ、Ⅳ
C.Ⅲ、Ⅳ
D.Ⅰ、Ⅲ
[单项选择]安全带的寿命一般为3～5年。使用( )年后，按批量抽检。
A. 3
B. 4
C. 5
D. 6
[判断题]容积调速比节流调速的效率低。
A.正确
B.错误
[判断题]空调列车列车始发前及途中，客运、车辆、公安等人员按照职责分工分别对列车上部设备设施进行检查，发现问题各自填入“三乘联检记录”并通知车辆人员处置，涉及行车、人身安全的及时采取临时处置措施。
A.正确
B.错误
[单选题]调动乘坐旅客或装载爆炸品、气体类危险货物、超限货物的车辆时，不准超过（）。
A.10km/h
B.15km/h
C.20km/h
D.25km/h
[单项选择]关于慢性支气管炎的发病因素，以下哪一项是错误的
A. 呼吸道局部防御功能和免疫功能低下
B. 自主神经功能失调
C. 呼吸道黏液分泌功能减退
D. 呼吸道黏液分泌功能亢进
E. 遗传易感性
[单项选择]男，49岁，农民，一周前感周身不适，发热，测体温38℃，认为是感冒，未引起重视，随后患者感下肢刺痛和皮肤瘙痒不适，痰多，不可控制地乱吐。言语增多，有时出现紧张，恐惧的感觉。体查：神志清楚，兴奋不安，瞳孔等圆等大，光反应存在，颈无明显抵抗，心肺无异常发现，肝脾未扪及，凯尔尼格征阴性，巴宾斯基征阴性。应采取什么隔离措施（）
A. 消化道隔离
B. 单室严格隔离
C. 呼吸道隔离
D. 蚊隔离
E. 血液隔离
[单选题]高处作业施工前,应对作业人员进行( ),并应配备相应防护用品。
A.安全教育
B.安全培训
C.安全技术教育及交底
D.安全交底
[判断题]镜煤的组成相当复杂，一般凝胶化组分比较少，矿物质含量较高。
[单选题]探伤仪可选择接收电路中的频率响应的旋钮是( )。
A.增益旋钮
B.检波旋钮
C.重复频率旋钮
D.频率选择旋钮
[不定项选择题]共用题干
Learning Disabilities
Learning disabilities are very common.They affect perhaps 1 0 percent of all children.Four times as many boys as girls have learning disabilities.
Since about 1970,new research has helped brain scientists understand these problems better.Scientists now know there are many different kinds of learning disabilities and that they are caused by many different things.There is no longer any question that all learning disabilities result from differences in the way the brain is organized.
You cannot look at a child and tell if he or she has a learning disability.There is no outward sign of the disorder.So some researchers began looking at the brain itself to learn what might be wrong.
In one study,researchers examined the brain of a learning-disabled person who had died in an accident. They found two unusual things.One involved cells in the left side of the brain,which control language.These cells normally are white.In the learning disabled person,however,these cells were gray.The researchers also found that many of the nerve cells were not in a line the way they should have been.The nerve cells were mixed together.
The study was carried out under the guidance of Norman Geschwind,an early expert on learning disabilities, Doctor Geschwind proposed that learning disabilities resulted mainly from problems in the left side of the brain. He believed this side of the brain failed to develop normally.Probably,he said,nerve cells there did not connect as they should.So the brain was like an electrical device in which the wires were crossed.
Other researchers did not examine brain tissue.Instead,they measured the brain's electrical activity and made a map of the electrical signals.
Frank Dully experimented with this technique at Children's Hospital Medical Center in Boston.Doctor Dully found large differences in the brain activity of normal children and those with reading problems.The differences appeared throughout the brain.Doctor Dully said his research is evidence that disabilities involve damage to a wide area of the brain,not just the left side.
Doctor Dully believed that______.
A.he found the exact cause of learning disabilities
B.the problem of learning disabilities did not lie in the left side of the brain
C.the problem of learning disabilities resulted from the left side of the brain
D.the problem of learning disabilities was not limited to the left side of the brain
[判断题]正确地选择电流互感器的变比，应按电流互感器长期最大的二次工作电流I2选择其一次额定电流I1n，并应尽可能使其工作在一次额定电流的60%左右，但不宜使互感器经常工作在额定一次电流的30%以下，否则应选用高动热稳定电流互感器，以减小变比
A.正确
B.错误
[单项选择]DOM is a platform-and language- (21) API that allows programs and scripts to dynamically access and update the content, structure and style of WWW documents (currently ,definitions for HTML and XML documents are part of the specification). The document can be further processed and the results of that processing can be incorporated back into the presented (22) . DOM is a (23) -based AP1 to documents, which requires the whole document to be represented in (24) while processing it. A simpler alternative to DOM is the event-based SAX, which can be used to process very large (25) documents that do not fit info the memory available for processing.
A. specific
B. neutral
C. contained
D. related
[单选题]下列哪项不属于施工现场平面布置图的基本内容( )。
A.工程施工场地状况
B.新建建(构)筑物的位置、轮廓尺寸、层数等
C.施工现场必要的安全、消防、保卫和环境保护等设施
D.相邻地上、地下既有建(构)筑物及相关环境
[单项选择]办公室主任是（ ）
A. 职位
B. 职责
C. 职务
D. 职业
[单选题]患者经来先后无定期，经量或多或少，色黯红，夹有血块，经行胸胁乳房少腹胀痛，脘闷不舒，时叹息，嗳气，纳差，苔薄白，脉弦。最佳选方是
A.丹栀逍遥散
B.一贯煎
C.逍遥散
D.定经汤
E.归脾汤
[单项选择]心动周期缩短时（）
A. 只有传导性而无自律性、传导速度很慢
B. 只有自律性而无传导性
C. 既有自律性也有传导性、传导速度较慢
D. 既有自律性也有传导性、传导速度较快
E. 既有律性也有传导性、自律性较高
[判断题]延安整风运动的方针是“知无不言,言无不尽”。 ( )
A.正确
B.错误
[单选题]加强探伤设备的保养、维修和检测，禁止使用有（ ）的探伤设备进行探伤作业。
A.附件
B.不同
C.标志
D.故障
[简答题]入选语文课本的散文《济南的冬天》是哪位中国著名现代文学家的作品？
[单选题]直线线路上轨向以10m弦在轨头内侧顶面下（）处量取最大矢度。
A.10mm
B.15mm
C.16mm
D.20mm
[多选题]在运营生产中，发生下列情况或造成下列后果之一，属于重大事故。（ ）
A.列车脱轨
B.人员重伤58人
C.连续中断行车32 小时
D.人员死亡29人
[单选题]BH026爆炸切割弹引爆切割后,高温高压气体在环空与( )相遇受阻而降温降压。
A. 地层岩屑
B. 油管
C. 套管
D. 修井液等液体 ;
[判断题]（ ）二次风经过二次风挡风板、燃烧器调风器、经外环和可调的内环进入炉膛。其主要起到与燃烧燃油混合的作用，因此也称为雾化风。
A.正确
B.错误
[判断题]当客户提出投诉或抱怨时，客服人员首先应当说明企业的规章制度，然后再听取客户的投诉或抱怨。
[单项选择]超期未报的进口货物被海关依法变卖，扣除相关费用和税款尚有余款的，自货物变卖之日起 ______ 内，经进口收货人申请予以发还。
A. 半年
B. 一年
C. 二年
D. 三年
[多选题]火灾报警有哪几种主要方式？（易）(消防通信网络设备)
A.市话报警
B.专线报警
C.自动报警
D.人工了望报警
E.特殊形式报警。
[多选题]《条例》规定,对事故发生单位主要负责人处上一年年收入40%至80%罚款的行为有( )。
A.事故发生后逃匿的
B.不立即组织事故抢救的
C.迟报或者漏报事故的
D.在事故调查处理期间擅离职守的
[单选题]除专业人员按规定作业外,任何人所携带的物件(包括长杆、扶梯等)与接触网带电部位,需保持( )米以上的安全距离。
A.0.5
B.1
C.1.5
D.2
[单项选择]“师爱”在教育过程中具有明显的教育价值。下列各项中关于"师爱"的表达不正确的是（）。
A. 研究与了解学生
B. 尊重与热爱学生
C. 信任并期望学生
D. 尽量满足学生的要求
[多选题]集贸市场对用火用电的防火管理要求主要包括( )等内容。
A.严禁燃放烟花爆竹
B.严禁焚烧物品
C.在禁火区域.部位设警示标志
D.严禁个人擅自拉设临时线路
E.电气线路和用电设备必须符合国家有关电气设计.安装规范的要求
[多选题]管线打开包括下列方式：( )
A.解开法兰
B.从法兰上去掉一个或多个螺栓
C.盲板抽堵
D.打开阀盖或拆除阀门
E.打开管线连接件
[填空题]Teaching involves more than leadership. Some of the teacher’s time and effort is {{U}} (36) {{/U}} toward instruction, some toward evaluation. But it is the teacher us a group leader who creates an {{U}} (37) {{/U}} organizational structure and good working environment so that instruction and evaluation activities can take place. A group that is {{U}} (38) {{/U}} disorganized, unclear about its goals, or {{U}} (39) {{/U}} fighting among its members will not be a good learning group. The leadership pattern includes helping to form and maintain a positive learning environment so that instruction and evaluation activities can take place.
On the first day of class, the teacher faces a room filled with {{U}} (40) {{/U}} . Perhaps a few closely {{U}} (41) {{/U}} groups and friendships already exist. But there is no sense of group unity, no set of rules for {{U}} (42) {{/U}} in the group, no feeling of belonging. If teachers are successful leaders, they will help students develop
[单选题]每一联动总线回路连接设备的总数不宜超过（ ）点。
A.100
B.150
C.200
D.250
[判断题]盆式橡胶支座质量应满足《客运专线桥梁盆式橡胶支座暂行技术条件》及《客运专线桥梁盆式橡胶支座暂行技术条件补充规定》要求，耐寒型盆式橡胶支座适用温度范围为-40℃~+60℃。
A.正确
B.错误
