热门试题:
[单项选择]关于分程控制回路描述中正确的是()
A. 可以扩大控制阀的可调范围,改善控制品质
B. 分程阀一定用于控制不同的介质
C. 分程控制就是控制变量的选择性调节
D. 可提高系统的稳定性能
[多项选择]MICM分型包括()
A. 细胞遗传学
B. 分子生物学
C. 免疫学
D. 细胞化学
E. 形态学
[单项选择]供应阴道中段的动脉是()
A. 阴道动脉
B. 会阴动脉
C. 痔下动脉
D. 子宫动脉子宫颈-阴道支
E. 阴部内动脉和痔中动脉
[多项选择]CRH2型动车组车载信息系统设备的切除、复位功能包括()内容。
A. 向牵引变流器、辅助电源装置以及配电盘传送复位指令
B. 设备远程切除指令的传送
C. 辅助绕组电源感应电路的控制
D. 三相AC400V电源感应电路的控制(BKK远程断开及闭合操作)
[单选题]在工作地点或检修的配电设备上悬挂( )标示牌。
A.“在此工作!”
B.“从此进出!”
C.“禁止合闸,有人工作!”
D.“止步,高压危险!”
[单项选择]下列选项中,不受著作权法保护的是()。
A. 法律法规
B. 计算机软件
C. 舞蹈作品
D. 即兴演讲
[单项选择]关于胶片特性曲线的说法,错误的是()
A. 表示密度值与曝光量之间的关系
B. 横轴表示曝光量对数值,纵轴表示密度值
C. 能够表达出感光材料的感光特性
D. 横轴表示密度值,纵轴表示曝光量
E. 可称为H-D曲线
[判断题]挤道岔系指车轮挤过或挤坏道岔。( )
A.正确
B.错误
[单选题] 本起事故的直接原因是()
A.塔吊基础螺栓断裂且超载吊运
B.维保单位维保流程形式
C.塔吊未配备司索信号工
D.塔吊基础长期积水
[单选题]在轨道电路限流电阻作用之一是:当轨道电路送电端轨面( )时保护送电电源不会被烧坏。
A.开路
B.短路
C.断路
D.生锈
[单项选择]乳痈最常见的原因是:
A. 哺乳不洁
B. 未哺乳
C. 妇女多产
D. 乳汁郁积
E. 以上都不是
[判断题]人感染高致病性禽流感是属于乙类法定传染病,流行时按甲类传染病管理。
A.正确
B.错误
[判断题]胸部外伤后最常见的两种症状为胸痛、呼吸困难。
[多选题]"轮对故障动态检测系统轮对外形及内侧距检测模块,车轮直径检测模块用于轮对关键( )的检测。
A.外形尺寸
B.踏面外形轮廓曲线
C.数据综合分析
D.管理软件"
[单项选择]《滑头鬼之孙》中陪主人公奴良陆生上学的妖怪是()
A. 毛倡妓
B. 鸦天狗
C. 雪女
D. 羽衣胡
[判断题]测量地线接地电阻时,应将地线同电气设备断开。( )
A.正确
B.错误
[单选题]1列车在站台发生整侧车门不能关闭时,列车司机处理无效,则报告行车调度员清客,采取()后退出服务。
A.车门切除
B.车门旁路
C.车门解锁
D.关闭车门
[判断题]CRH380B型动车组车轮轮对内侧距原形:1353(0,+2)mm 。
A.正确
B.错误
[单选题]虹膜炎继发性青光眼是由于
A.虹膜周边前粘连、瞳孔闭锁
B.房水分泌过多
C.血──房水屏障功能破坏
D.玻璃体大量炎症细胞
E.炎症反复发作使房角后退
[多选题][多选题]大肠内细菌活动的作用是
A.促进大肠吸收水
B.刺激大肠的运动
C.促进大肠吸收无机盐
D.腐败和酵解食物残渣
E.能合成维生素B复合物和维生素K
[单选题]AreaRAE复合式气体检测仪装置可以在灾害现场有选择性的对多种气体进行检测。该仪器可安装( )个传感器。(中)
A.2个
B.3个
C.4个
D.5个
[单项选择]
In this section, you will hear two long conversations. Each
conversation will be read only once. At the end of each conversation, there will
be a one-minute pause. During the pause, read the five questions, each with
three choices marked A, B and C, and decide which is the best answer. Then mark
the corresponding letter on the answer sheet with a single line through the
centre.{{B}}Conversation One{{/B}}
What is the approximate temperature in Cambridge in summer
[单项选择]注水系统在启动初始化过程中,增压泵的出口是()
A. 低流量
B. 空的
C. 高差压
D. 低液位
[单选题]临近( )的拆除作业,应编制专项安全施工方案并报审批,应按规定办理相关手续。
A.带电体
B.设备
C.马路
D.建筑物
[单选题]灭火毯灭火时,双手手心向灭火毯内部插入,展开灭火毯;举起灭火毯并挡在自己的身体前,扑向火源,将火完全盖住;停( )左右再将毯子拿起,以免燃烧物液(如油)温度过高而复燃。
A.15s
B.25s
C.30s
D.60s
[单选题]建筑物上的防雷设施采用多根引下线时,应在各引下线距地面(____)米处设置断接卡,断接卡应加保护措施。
A.0.1-0.2
B.0.1-0.5
C.1.5-1.8
D.1.5-2.0
[判断题]一切调度命令是以值班调度员发布命令时开始,至受令人执行完后报值班调度员后才算全部完成。
A.正确
B.错误
[单项选择]按咨询的时程,心理咨询可分为( )
A. 门诊面讯、电话咨询合互联网咨询
B. 健康咨询与发展咨询
C. 短诊。中程个长期的心里咨询
D. 个体咨询与团体咨询
[判断题]沟(槽)开挖时,应将路面铺设材料和泥土堆置在一起,堆置处和沟槽之间应保留通道供施工人员正常行走。
A.正确
B.错误
[单项选择]
W: Hey, Bob, guess what I’m going to visit Quebec next summer. I’m invited to go to a friend’s wedding, but while I’m there, I’d also like to do some sightseeing.
M: That’s nice, Sherry. But do you mean the province of Quebec or Quebec City
W: I mean the province. My friend’s wedding is in Montreal, so I’m going there first. I’ll stay for 5 days. Is Montreal the capital city of the province
M: Well, many people think so because it’s the biggest city, but it’s not the capital. Quebec City is. But Montreal is great. The Santa Lawrence River runs right through the middle of the city. It’s beautiful in summer.
W: Wow, and do you think I can get by in English My French is OK, but not that good. I know most people there speak French, but can I also use English
M: Well, people speak both French and English there, but you’ll hear French most of the time and all the street
A. To attend a wedding in Montreal.
B. To do some sightseeing.
C. To travel abroad.
D. To visit her relatives.
[单项选择]()管理活动和管理行为不仅是员工行为的示范,而且直接影响员工的工作效率和工作业绩。
A. 高层管理人员
B. 中层管理人员
C. 基层管理人员
D. 专业技术人员
[判断题]事故照明属于正常直流负荷。
A.正确
B.错误
[判断题]王某因赌博欠债,将自己刚满3个月的儿子送给无子女的陈某收养,以“营养费”的名义收取人民币10万元。对王某应以拐卖儿童罪定罪处罚。
A.正确
B.错误
[多项选择]平面闸门止水橡皮安装检测工具是()
A. 射线仪
B. 焊缝规
C. 钢尺
D. 钢丝线
[判断题]开关室运行规定,开关室长期运行温度不得超过40℃,否则应采取加强通风降温措施(开启开关室通风设施)。
A.正确
B.错误
[单项选择]坦克的火力性是坦克性能的重要指标,下列坦克中火力性能最好的是()
A. T-90
B. 豹2A6
C. M1A2
D. 挑战者-2
[单项选择]
One summer night, on my way home from work I decided to see a movie. I knew the theatre would be air-conditioned and I couldn’t face my (21) apartment. Sitting in the theatre I had to look through the (22) between the two tall heads in front of me. I had to keep changing the angle every time she leaned over to talk to him, (23) he leaned over to kiss her. Why do Americans display such affection in public places I thought the movie would be good for my English, but (24) it turned out, it was an Italian movie. (25) about an hour, I decided to give up the movie and (26) on my popcorn(爆玉米花). I’ve never understood why they give popcorn! It tasted pretty good, (27) . After a while I heard (28) more of the romantic-sounding Italians. I just heard the sound of the popcorn crunching (咀嚼) between my teeth. My thought started to (29) . I remembered when I was in South Korea (韩国), I (30) to watch Kojak on TV fr
A. felt
B. looked
C. seemed
D. appeared