热门试题:
[单选题]根据《建筑施工模板安全技术规范》(JGJ162)的规定,钢筋自重标准值(G3k)应根据工程设计图确定。对一般梁板结构每立方米钢筋混凝土的钢筋自重标准值:( )。
A.楼板0.3kN,梁0.5kN
B.楼板0.5kN,梁0.8kN
C.楼板1.1kN,梁1.5kN
D.楼板1.5kN,梁2.0kN
[单项选择]下列钢材化学成分中,属于碳素钢中的有害元素是( )。
A. 碳
B. 硅
C. 锰
D. 磷
[判断题]在存建筑倒塌风险的事故现场,警戒区域半径不小于建筑物高度的2倍。
A.正确
B.错误
[判断题]不规则物体的重心采用垂直悬挂法。
A.正确
B.错误
[单选题]销售的商品应统一供应,标识明显,不得()
A.上私货
B.卖高价
C.强买强卖
[单选题]脊髓灰质炎后遗症,关节融合的最好时间为
A.起病后第2年
B.起病后第3年
C.起病后第5年
D.起病后第6年
E.病人年龄13岁以上
[多选题]单机挂车时连挂前按规定彻底检查货物装载状态,并将()交与司机;
A.编组顺序表
B.货运单据
C.编组单
D.票据
[填空题]英国资产阶级社会学家-(),以进化论为中心,奠定了功利主义体育观,促进了体育的进一步科学化,闻名于世的著作有《智育》、《德育》和《体育》。
[判断题]SF6新气到货后,充入设备前应对每批次的气瓶进行抽检,其他气瓶按60%的比例测定含水量。
A.正确
B.错误
[单选题] 生产安全事故报告和调查处理条例规定,事故报告应当及时、准确、完整( )对事故不得迟报、漏报、谎报或者瞒报。
A.企业
B.政府部门
C.任何单位和个人
[单选题] 年10月24日10时,某公司钻床工胡某和张某在流水线组合钻台位进行C7O中梁板座和心盘的打孔作业。胡某按下卡紧装置自动运行程序按钮后,张某离开操作台进入组合钻一端狭窄的设备空间内,左手扶中梁侧翼面,右手拿手电侧身观察;此时卡紧装置开始动作,将张某的左手挤在卡紧装置与中梁侧翼面之间,使其左手严重受伤。根据以上描述,可判断导致此次事故发生的主要危险因素是()。
A.旋转的钻头、狭窄的空间、滑动的钻台
B.锋利的钢板、运动的卡紧装置、滑动的钻台
C.狭窄的空间、运动的卡紧装置、运动部件与静止部件的组合
[单选题]3.1184.
根据被测试电缆的( )选择适当的绝缘电阻表。
A.额定电流
B.额定电压
C.绝缘电阻
D.规格型号
[单选题]《带电设备红外诊断应用规范》要求,对于高压开关设备用螺栓的或与其等效的连结,裸铜、裸铜合金、裸铝合金在SF6气体中的温度和温升(周围空气温度不超过40℃)的最大值分别是( )。
A.115℃,85K
B.115℃,75K
C.105℃,85K
D.105℃,65K
[多选题]现场防护员应根据作业场所地形选择( )的安全处所进行防护。
A.瞭望条件较好
B.位置醒目
C.不侵限
D.便于通知
[多选题]脱离电源后救护者应注意的事项()
A.救护人不可直接用手、其他金属及潮湿的物体作为救护工具,而应使用适当的绝缘工具
B.防止触电者脱离电源后可能的摔伤,特别是当触电者在高处的情况下,应考虑防止坠落的措施。
C.救护者在救护过程中特别是在杆上或高处抢救伤者时,要注意自身和被救者与附近带电体之间的安全距离
D.如事故发生在夜间,应设置临时照明灯,以便于抢救
E./
F./
G./
H./
[判断题]橡胶绝缘用具应放在避光的柜内,使用频繁的可不撒上滑石粉。
A.正确
B.错误
[单项选择]左向右分流型的先心病是
A. 动脉导管未闭
B. 肺动脉狭窄
C. 主动脉缩窄
D. 右位心
E. 大血管错位
[单项选择]Hollywood has a message for scientists: If you want something that’s 100% accurate in every way, go watch a documentary. The thing is, when it comes to movies, narrative wins. The writer’s job is to get the characters right, not the science, says Tse, who cowrote Watchmen, one of last year’s most-anticipated superhero films. It annoys him, too, when things don’t make sense. He spent a lot of time and energy trying to find a fix for a logical problem in Watchmen--that one character, Dan, uses a completely obvious password to hack into the computer of Adrian, who is supremely intelligent. But for practical reasons, that kind of problem often just can’t be fixed. Maybe it would take too long, in an already long movie, or distract too much from the narrative, or cost too much to shoot.
Writers have faced similar problems with the TV show Heroes. The series follows a group of characters that have acquired superpowers: one is invisible, and one can walk through wall
A. beyond explanation
B. beyond imagination
C. scientifically crazy
D. practically reasonable
[单选题] 除铁塔出口含铁大于( )ppm要求切换。
A.0.2
B.0.4
C.0.45
D.0.30
[单项选择]1804年《法国民法典》第11条规定:外国人如其本国和法国订有条约允许法国人在其国内享有某些民事权利者,在法国亦得享有同样的民事权利。这是一条()的规定。
A. 国民待遇
B. 优惠待遇
C. 歧视待遇
D. 敌视待遇
[单选题][难度:0.5][分数:1]工业机器人一般需要( )个自由度才能使手部达到目标位置并处于期望的姿态。
A.3
B.4
C.6
D.9
[判断题]冻伤急救,应将伤员身上潮湿的衣服剪去后用干燥柔软的衣服覆盖,并立即烤火或搓雪。
A.正确
B.错误
[填空题]落地页访问用户首屏跳出率高,首要优化什么内容( )。
[单选题]DMI有权端按压()组合键,有权端变为无权端。
A.【车位】+3
B.【车位】+5
C.【车位】+7
D.【车位】+9
[填空题]Academy Award nominees who go home empty-handed may not have a shiny Oscar to show off, but they may turn out to be the bigger winners in the game of life.
According to a study published in British Medical Journal on December 21, Oscar-winning screenwriters are more successful, more productive, and more (1) than losing nominees; however, they die sooner by about four years.
Because success is usually linked to better health, "this is the first (2) ever that success is not associated with improved (3) ," says Donald Redelmeier, lead author of the study.
Researchers (4) down information about every person who was ever nominated for an Oscar since the awards were first handed out 73 years ago.
To explain the (5) findings, he offers two theories. The first is the "work-to-death hypothesis."
According to Redelmeier, screenwriters are more (6) to lead unhealthy lifestyles, meaning the
[单项选择]放射性核素骨显像的主要缺点是()。
A. 灵敏度不高
B. 显示病变范围局限
C. 假阳性率高
D. 假阴性率高
E. 特异性差
[多项选择]社会主义民族关系的基础有()。
A. 中国共产党的领导
B. 社会主义制度的建立
C. 马克思主义民族理论的指导
D. 人民民主专政制度
[单项选择]在E-R图中,实体型一般用下列哪一种图形表示( )
A. 菱形
B. 椭圆形
C. 矩形
D. 三角形
[单选题]对验收不合格的工序或项目,检修班组应重新组织( ),直至验收合格。
A.验收
B.检修
C.小修
D.试验
[填空题]With the recent rapid advances in information technologies, educational researchers at every level and in every (36) have developed new methods, tools, and (37) for instruction. Their general purpose is to make the educational process — teaching and learning sound much more scientific and modem. As the Internet, email and (38) have already become parts of most college students’ lives and studies nowadays; (39) these new information technologies to engineering and science instruction is a great (40) for teachers and researchers. Although the effectiveness and (41) of new information technologies on education m not yet well comprehended and (42) , the promises and (43) they hold for improving education are exciting. For example, (44) . By the networks, teaching and learning are no longer confined to the classrooms.
Students at home and in work places can have access to learning material at any time,
[单项选择]保和丸和越鞠丸中共有的药物是()
A. 山楂
B. 栀子
C. 神曲、栀子
D. 茯苓
E. 神曲
[单选题]施工单位项目专职安全员应严格履行岗位职责,加强对分包工程安全巡查,及时发现和制止作业人员违章行为。
A.正确
B.错误
[判断题]空调机组的压缩过程:从蒸发器出来的低压制冷剂气体被压缩机压缩后,变为低温、高压气体排入冷凝器。 ( )
A.正确
B.错误
[判断题]职工发生创伤在未到达医院前进行抢救时,应首先用附近备用急救药品进行简易包扎
A.正确
B.错误
[单项选择]不是处理过程中考虑的内容的是()。
A. 认错态度
B. 退赃情况
C. 违法次数
D. 职务高低
[单项选择]以下属于运动员禁忌的药物是
A. 阿司匹林
B. 对乙酰氨基酚
C. 苯丙胺
D. 萘普生
E. 吲哚美辛
[单选题]作业人员对需要进行试风作业的列车,未按规定进行()。一经检查发现,应内部待岗三个月,调离原岗位。
A.撤除防溜作业
B.涂打标记
C.试风作业
D.汇报尾号
[单选题] 配电柜或配电线路停电维修时,应挂接地线,并应悬挂“()”停电标志牌。
A. 高压危险
B. 注意安全
C. 当心触电
D. 禁止合闸、有人工作