热门试题:
[判断题]特种设备分为承压类和机电类两大类。
A.正确
B.错误
[单选题]高铁受电弓动态包络线应符合下列规定:受电弓动态抬升量在线岔始触区为( )mm。
A.150
B.200
C.250
D.350
[单选题] 游标卡尺按精度可分为( )三种。
A.0.1 mm、0.2 mm、0.3 mm
B.0.2 mm、0.1 mm、0.05 mm
C.0.1 mm、0.05 mm、0.02 mm
D.0.1 mm、0.05 mm、0.01 mm
[判断题]为防止列车断钩,进站停车时货物列车要防止低速缓解、二次制动。( )
A.正确
B.错误
[多选题]遇( )时禁止手推调车。
A.大风
B.大雾
C.暴风雨雪
D.夜间无照明
[判断题]对嫌疑人的盘查中,嫌疑人的反抗行为具有突发性。
A.正确
B.错误
[单项选择]PRW10-12F型熔断器的熔丝(熔体)材料采用了()。
A. 纯铜材料
B. 高熔点合金材料
C. 低熔点合金材料
D. 铜钨合金材料
[单选题]当轨温变化时,整个钢轨断面所承受的力(拉力或压力),称为( )。
A.温度力
B.温度应力
C.拉应力
D.压应力
[多项选择]下列属于第三间隙的有 ()
A. 组织间
B. 血管内
C. 脑脊液
D. 胸腔液
E. 关节液
[判断题]2.63 登记地车辆管理所每个工作日通过计算机登记系统查询机动车异地报废解体信息,打印异地报废解体证明,办理注销登记,将异地报废解体证明存入机动车档案。
A.正确
B.错误
[单选题]进入高温、浓烟、有毒、缺氧区域、封闭空间时,必须佩戴使用()或移动供气源,严禁使用过滤式防护装具。开放式有毒区域也可使用强制送风呼吸器、消防过滤式综合防毒面具。
A.防静电服
B.抢险服
C.灭火战斗服
D.空(氧)气呼吸器
[单项选择]下列器官的消化以物理消化为主的是()。
A. 口腔
B. 胃
C. 十二指肠
D. 直肠
E. 结肠
[填空题]How long is it since George Swinton left high school ()
[判断题]燃煤采样是以概率论为主要内容的数理统计方法为基础。( )
A.正确
B.错误
[单项选择]从持续时间来看,设计单位的项目管理()。
A. 仅限于设计阶段
B. 包括可行性研究阶段和设计阶段
C. 包括设计阶段和施工阶段
D. 包括设计阶段、施工阶段和竣工验收阶段
[判断题]从辙叉咽喉到心轨的实际尖端的这段距离,轮缘失去钢轨引导,所以叫做有害空间。
A.正确
B.错误
[单选题]配电箱、柜内各设备连接的导线黑色表示()。
A.正极
B.PE
C.PEN
D.负极
[判断题]电气设备的四种状态包括运行、热备用、冷备用和检修。(____)
A.正确
B.错误
[填空题]
Read With Greater Speed
Do you have difficulty reading in class If so, a special reading program that helps match sounds with letters could speed up your brain.
At least one out of every five elementary school students in the U. S. has trouble learning to read, even when the students are good at other subjects.
(1) Researchers from Yale University, U.S., studied a group of children from New York and Connecticut State. As part of the study, 37 struggling readers received special tutoring.
Every day, instructors worked with them on recognizing how written letters represent units of sound called phonemes (音素).
(2) By the end of the school year, these children could read faster than before. They also made fewer mistakes, and understood more of what they read than they could earlier in the year.
As part of their study, the researchers used a special machine to take action photos of th
[单选题]快速大量输入冷藏血时,应在血袋外加保护袋将血预热后输入,保护袋内的温度应:
A.<30℃
B.<32℃
C.<33℃
D.<37℃
E.<40℃
[填空题]高压室的钥匙至少应有( )把,由运维人员负责保管,按值移交。 C
[单选题]投料高度()应使用溜槽或串筒下料,串筒宜垂直放置,串筒之间连接牢固,串筒连接较长时,挂钩应予加固。
A.超过2m
B.超过3m
C.超过4m
D.超过5m
[单项选择]兰等的碱性苯胺染料在电离状态下常有阳电荷,细菌等电点在大约pH多少易于碱性染料结合而着色()
A. pH>12
B. pH6~7
C. pH10~12
D. pH2~5
E. pH8~9
[填空题]检测磁感应式曲轴位置传感器是否良好,应检查磁感应线圈()与交流信号电压。
[简答题]根据费雪效应,通货膨胀率的上升如何影响真实利率与名义利率?
[判断题]横越线路时,须执行“一站,二看,三通过”的制度。()
A.正确
B.错误
[判断题]除个体工商户以外的其他个人不属于增值税一般纳税人。( )
A.正确
B.错误
[单选题]安检工作开始前,我们对金属探测仪的检查包括( )。
A.电源是否充足
B.外壳是否有破损
C.灵敏度是否达到工作要求
D.以上三种
[单选题]列车通过减速地点标时的限制速度为标明的速度,未标明时为( )km/h。 J347
A.15
B.25
C.45
[单选题]当入口为车辆发放CPC卡时,但车牌识别错误时,按( )键重新识别车牌。
A.改轴
B.管理
C.次票
D.绿通
[多项选择]在国际贸易中,常用于中间商转售货物交易的信用证是( )。
A. 对背信用证
B. 对开信用证
C. 可撤销信用证
D. 可转让信用证
[多选题]云计算的特征有哪些?
A.虚拟化
B.动态可扩展
C.管理多设备
D.个体自治
[单项选择]按照换热方式进行分类,换热器可分为蓄热式换热器、混合式换热器和()。
A. 间壁式换热器
B. 管式换热器
C. 板式换热器
D. 喷淋式换热器
[单选题]HXD2型电力机车轴式为( )。
A.2(B0+B0)
B.B0-B0
C.C0-C0
[单项选择]男,40岁。10年前发现乙型肝炎表面抗原阳性,未规律诊治。近日食欲下降。肝穿刺可见假小叶,其正确的诊断是()
A. 肝癌
B. 慢性乙型肝炎
C. 肝结核
D. 肝淋巴瘤
E. 乙肝肝硬化
[单项选择]正常人摄K+多,由肾脏排出也多,其主要原因是()
A. 肾小球滤过率增加
B. 近端小管重吸收K+减少
C. 远曲小管和集合管分泌K+增多
D. 髓袢重吸收K+减少
E. 醛固酮分泌减少
[单项选择]In such a changing, complex society formerly simple solutions to informational needs become complicated. Many of life’’s problems which were solved by asking family members, friends or colleagues are beyond the capability of the extended family to resolve. Where to turn for expert information and how to determine which expert advice to accept are questions facing many people today.
In addition to this, there is the growing mobility of people since World War Ⅱ. As families move away from their stable community, their friends of many years, their extended family relationships, the informal flow of information is cut off, and with it the confidence that information will be available when needed and will be trustworthy and reliable. The almost unconscious flow of information about the simplest aspects of living can be cut off. Thus, things once learned subconsciously through the casual communications of the extended family must be consciously learned.
Adding to societal changes today
A. they have to learn new things consciously
B. they lack the confidence of securing reliable and trustworthy information
C. they have difficulty obtaining the needed information readily
D. they can hardly carry out casual communications with an extended family
[单选题]牙骨质龋的破坏方式为
A.沿釉牙骨质界
B.沿牙本质牙骨质界
C.垂直于牙骨质生长线
D.沿牙骨质生长线
E.以上都可以
[单项选择]患儿男,7岁。8月份外出旅游时发病。表现高热、惊厥3次急诊入院。体温39.5℃,面色苍白,四肢厥冷,意识模糊。确诊后,为预防传播,护士告诉家长隔离时间是()
A. 临床症状好转
B. 临床症状消失
C. 3次大便培养阴性
D. 2次大便培养阴性
E. 1次大便培养阴性