[单选题]硝酸铵不溶于( )。
A.丙酮
B.氨水
C.乙醇
D.乙醚

[单选题][T]B-A-D-002 5 2 3
法兰、管吊组装时，同一法兰或管吊上的两个螺栓应交替紧固。法兰螺栓紧固后，两法兰面长度方向( )不得接触
A.前部
B.中部
C.后部
D.两端

[判断题]《高速技规》：当洪水漫到路肩时，列车应按规定立即停车。（ ）
A.正确
B.错误

[判断题]十、五、三车距离信号昼间为展开的绿色信号旗单臂平伸，夜间为绿色灯光，在距离停留车十车（约110 m）时下压一次，五车（约55 m）时连续下压两次，三车（约33 m）时连续下压三次。
A.正确
B.错误

[单选题]安装ETC车载装置的车辆(以下简称ETC车辆)在出口收费站自动完成扣费；非ETC车辆在出口收费站( )交费。
A.人工
B.停车
C.自助
D.排队

[判断题]双线双向区间反方向行车，应停止使用基本闭塞法，改用电话闭塞法。
A.正确
B.错误

[判断题]华为CSS集群和业界其他厂商的业务口集群最大的区别是通过交换网集群，数据跨框一次交换，降低集群时延。

[判断题]可断铸铁比灰铸铁的塑性好，因此可以进行锻压加工。

[判断题]（）烟草专卖行政主管部门对受理申请材料实质内容的真实性负责。

[单项选择]下列有关细胞衰老、凋亡、坏死和癌变的说法中正确的是（）
A. 细胞内酶活性增高是导致细胞趋向衰老的主要原因
B. 细胞凋亡与极端的物理、化学等因素关系十分密切
C. 细胞凋亡和坏死时释放的细胞内容物都会伤害周围细胞
D. 各种致癌因子可改变正常细胞的遗传物质进而诱发癌变

[判断题]动火工作票至少应保存半年。
A.正确
B.错误

[单选题]通过反向风门墙垛的风筒、水沟、刮板输送机道等，必须设有（ ）。
A.风障
B.风帘
C.逆向隔断装置
D.隔断装置

[多项选择]给水排水厂站工艺管线设备安装要求包括（）。
A. 对于进场设备进行开箱验收并抽样l0%填写纪录
B. 联动试车，进行系统调试
C. 设备安装、调试、单机运行并按有关规定进行验收、记录
D. 过后进行测量放线并核对相关预埋件尺寸、位置、材质情况
E. 安装之后进行土建结构验收

[单项选择]______ you a president or an ordinary person, you will be punished if you commit a crime.
A. May
B. However
C. Are
D. Be

[单选题]综合检查，对生产、检修、设备设施、建筑施工、电气、（ ）、能源动力、工业用电、压缩空气、安全培训等领域安全工作进行专项专业检查和日常动态检查。
A.电气
B.检修
C.消防
D.设备

[单选题] 完全由清政府经营的企业是( )
A.江南制造局
B.轮船招商局
C.发昌机器厂
D.开平矿务局

[单项选择]下列哪项不是槟榔的治疗作用？（）
A. 食积腹胀
B. 风湿痹痛
C. 泻痢后重
D. 脚气肿痛

[不定项选择题]共用题干 Car Crime
1. A million motorists leave their cars filled up with petrol and with the keys in the ignition every day.The cars are sitting in petrol stations while drivers pay for their fuel.The Automobile Associ-ation(A A)has discovered that cars are left unattended for an average three minutes and some-times longer as drivers buy drinks,sweets,cigarettes and other consumer items.With payment of credit cards becoming more and more common,it is not unusual for a driver to be out of his car for as long as six minutes,providing the car theft with a golden opportunity.
2. For more than ten years there has been a big rise in car crime than in most other types of crimes .An average of more than two cars a minute are broken into or stolen in the UK.Car crime accounts for almost a third of all reported offenses with no signs that the trend is slowing down.
3. Although there are highly professional criminals involved in car theft,almost 90 percent of car theft is committed by the opportunists.Amateur thieves are aided by our own carelessness.The AA recommends locking up whenever you leave the car and for however short a period.A partially open sunroof or window is a further come-on to thieves.
4. There are many other traps to avoid.The AA has found little awareness among drivers about safe parking. Most motorists questioned made no efforts to avoid parking in quiet spots-ust the places thieves' love.The AA advises drives to park in places with people around-thieves don't like audiences. Most car thefts should be blamed on______.
A.the carelessness of the drivers
B.increase in the number of cars stolen
C.non-professional thieves
D.lack of parking space
E.safe parking spots
F.professional thieves

[填空题]•-01-2021:16:15.786

[多选题]根据《高频阻波器验收细则》，下列关于支柱式高频阻波器竣工验收说法正确的是（）。
A.铭牌安装在便于查看的位置上，材质应为防锈材料，无锈蚀
B.400平方毫米及以上的铝设备线夹，朝上30度到90度安装时，应设置排水孔
C.接地端子及构架可靠接地，无伤痕及锈蚀支座接地线不应构成闭合回路
D.使用铜铝过渡对接线夹时，不应使接线端子承受超过厂家规定值的侧向拉力

[多选题]在电气设备上工作，保证安全的技术措施有停电、（）、（）、（）。
A.A.办理工作票
B.B.验电
C.C.接地
D.D.悬挂标示牌和装设遮栏（围栏）

[多选题]在建筑物倒塌事故处置中,对救援人员行动安全的要求是( )。(难)
A.不应进入建筑结构已经明显松动的建筑物内部
B.不得登上已受力不均衡的阳台、楼板、屋顶等部位
C.不准冒险进入非稳固支撑的建筑废墟下面
D.冒险进入已经明显松动的建筑物内部实施救人
E.利用大型设施进行施救

[单选题]U相电压是接在()号端口。
A.2
B.5
C.8
D.10

[单项选择]{{B}}Passage 2{{/B}}