热门试题:
[单项选择]若油气藏同时存在油、气、水时,油处于()。
A. 油、气分界面之上
B. 油、气分界面之下
C. 油、气分界面与油、水分界面之间
D. 含油边缘之外
[单选题]水利生产经营单位、部直属单位应当通过“水利安全生产信息上报系统”将上月本单位发生的造成直接经济损失在( )万元以上的水利生产安全事故和较大涉险事故情况逐级上报至水利部。
A.30
B.50
C.90
D.100
[单项选择]某月经周期正常规律的孕妇,目前怀孕32周,孕期进展顺利。该胎儿体质量约为()。
A. 1700g
B. 1400g
C. 1000g
D. 800g
E. 600g
[填空题]减压馏程从开始加热到初馏点的时间应控制在( ) min。
[多选题]在进行微量水分分析时,判断阴极溶液失效的情况有( )。
A.基准值不稳,重现性差
B.溶液变得发黑和粘稠,可能会黏附在阴极上
C.达到终点需要的时间较长
D.阴极表面发黑
[填空题]Science to the human mind is ______ (正如水或空气之于身体).
[判断题]帮助触电者脱离电源时,不可直接用人的肢体或其他金属及潮湿的物体作 为救护工具。( )
A.正确
B.错误
[填空题]PP-R管道熔接工艺;管道熔接前,量好安装长度。长度要准确,别忘记嵌入套管的深度,利用专用剪刀或细金属锯条切断管材。将管端各切去4~5cm因为端部可能受损。把焊机接通电源( )并等待片刻,当( ),则说明已达到焊接温度260℃,可开始工作,用一个自调式熔焊机将管材和管件连接在一起,切记在( )。
[判断题]轨距是钢轨踏面下 16mm 范围内两股钢轨工作边之间的最小距离。( )
A.正确
B.错误
[多选题]发生生产安全事故后,生产经营单位应当立即启动生产安全事故应急救援预案,采取应急救援措施,采取必要措施,防止事故危害扩大和( )、( )灾害发生。
A.次生
B.衍生
C.相关
D.其它
[单项选择] Crosby’’s recent study of American historical demography is blithely based on the reconstitution of the records of single parishes, a method that often excludes migrants. Moreover, it is troublesome for historians to obtain information on the birthdates of people who relocated to the parish, and equally difficult to follow those who had migrated to new places of residence. Thus, the exclusion of migrants also followed from the way spatial units were once conceived by the parishioners themselves, a stable and unchanging pre-modern countryside of interchangeable towns unlike "modern" flows to cities.
As a result, migration was improperly assumed to be irrelevant because the small units in the countryside were interchangeable and migrants into a parish could thus stand as a proxy for those who had left. In any case, it was thought that migration in the countryside was repetitive and occurred only in response to life course events, such as finding a spouse, and thus, like the parishi
A. summarizing the findings of a study
B. placing new research within its historical context
C. evaluating the methodology of a historian
D. comparing various demographical techniques
E. establishing categories
[单选题]高[电]压:a)通常指超过低压的电压等级。b)特定情况下,指电力系统中()的电压等级。
A. A.输电
B.B.变电
C.C.配电
D.D.用电
[判断题]高压场合应选用高灵敏度或目标前置式漏电检测仪。
[多项选择]对于发散思维的质量,心理学中通常从哪些方面衡量()。
A. 敏捷性
B. 变通性
C. 坚持性
D. 独特性
E. 流畅性
[判断题]“平衡膳食宝塔”建议的各类食物摄入量一般是指食物的熟重。( )
A.正确
B.错误
[判断题] 大型机械在多方联合验收合格后就可投入使用。万科集团在建项目大型机械设备管理规定A1。
*
A.正确
B.错误
[判断题]装药、引爆工艺不合理或违章操作会引起爆破伤害。
A.正确
B.错误
[单项选择]创新组织要解决的核心问题在于既要激发创新人员的主动性与(),又要使其服从创新活动的整体要求。
A. 能动性
B. 自主性
C. 创新性
D. 创造性
[判断题]( )862.搅拌机、卷扬机、电焊机等施工机具安装完毕后,即可投入使用
A.正确
B.错误
[判断题]人民警察的身体素质,即人民警察的体质,包括体力、运动速度、耐性、灵活性、敏捷性等,是人民警察各种才能得以正常发挥乃至超常发挥的物质基础。 ( )
[判断题]行政执法人员当场作出行政处罚决定的,须向行政机关负责人报告并经批
准。
A.正确
B.错误
[单选题]进行SF6气体采样和处理一般泄漏时,要戴防毒面具或( )并进行通风。
A.A-口罩
B.B-正压式呼吸器
C.C-手套
D.D-护目眼镜
[单选题]调车作业由()单一指挥。
A.调车长
B.调车指挥人
C.调车领导人
D.车站值班员
[多选题]269
A.半卧位
B.禁食
C.疼痛剧烈时使用小剂量吗啡
D.胃肠减压
E.便秘时低压灌肠
[简答题]动车组的概论是什么?目前我国开行的动车组列车速度等级有哪些?
[判断题]企业法人的分支机构有法人书面授权的,可以在授权范围内提供保证。( )
[判断题]( )人体是寄生虫的宿主。
A.正确
B.错误
[填空题]Justice in society must include both a fair trial to the accused and the selection of an appropriate punishment for those proven guilty. Because justice is regarded as one form of equality ,we find in its earlier expressions the idea of a punishment equal to the crime. Recorded in the Bible is the expression "an eye for an eye, and a tooth for a tooth." That is, the individual who has done wrong has committed an offense against society. 46 ) To make repayment for this offense ,society must get equally balanced, which can be done only imposing an equal injury upon him. 47) This conception of deserved-punishment justice is reflected in many parts of the legal codes and procedures of modern times, which is illustrated when we demand the death penalty for a person who has committed murder. This philosophy of punishment was supported by the German idealist Hegel, who believed that society owed it to the criminal to put into operation a punishment equal to the crime he had committed. 48) The
[判断题]使用刮板输送机运料,经班组长同意可以不制定安全措施。( )
A.正确
B.错误
[判断题]2.1 现役军人(含武警)的身份证明,是《居民身份证》或者《临时居民身份证》。在未办理《居民身份证》前,是军队有关部门核发的《军官证》《文职干部证》《士兵证》《离休证》《退休证》等有效军人身份证件。
A.正确
B.错误
[简答题]简要病史:女性,43岁,间断性上腹痛9年,阵发性腹痛伴呕吐3天。
[单项选择]在Windows中,一个文件夹可以包含( )。
A. 文件
B. 文件夹
C. 快捷方式
D. 以上三个都可以
[单项选择]哪个牙发生变异的情况最多
A. 中切牙
B. 上颌尖牙
C. 第三磨牙
D. 上颌第一磨牙
E. 上颌第一前磨牙
[单项选择]男性,69岁。右侧睾丸痛伴畏寒、发热1天。查体:右侧附睾肿大,质硬,压痛明显。血常规:WBC 12×109/L,N87%,B超:右侧附睾增大,血流信号增加。诊断首先应考虑()
A. 右侧附睾睾丸炎
B. 右侧急性附睾炎
C. 右侧附睾肿瘤
D. 右侧附睾结核
E. 右侧睾丸扭转
[多选题]UPS面板显示“机内过热”,找出所有可能的的原因是()
A.热继电器连接线松脱
B.散热风道堵塞
C.风扇损坏
D.环境温度高
[单选题]作为火灾和爆炸的电气引燃源,电气设备及装置在运行中产生的危险温度、电火花和电弧是电气火灾爆炸的主要原因。下列有可能导致温度过高产生火灾的情况有( )
A.电动机在额定功率和额定电压下运转长达4 r
B.白炽灯灯泡表面温度高到烫手的程度
C.电动机电流过小,导致电动机转速过慢
D.电动机导线受到损伤导致截面积变小