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[单选题]护套交叉互联的电缆线路感应电压低、环流小、幅值相等，两接地点之间电位差是零，线路上最高的护套感应电压可以限制在（）以内。
A.65V
B.75V
C.85V
D.95V

热门试题:

[单项选择]手工加油润滑常用润滑机具是（）。
A. 油嘴、油枪
B. 油芯式油杯
C. 油莲、油池
D. 油轮、刮板

[单选题]钢结构工程，碳素结构钢在环境温度低于（　　）℃，低合金结构钢在环境温度低于－12℃时，不应进行冷矫正和冷弯曲。（GB50755—2012《钢结构工程施工规范》8.4.2）
A.A.10
B.B.－12
C.C.－15
D.D.－16

[判断题]浮筒式液位计属于恒浮力式液位计。( )
A.正确
B.错误

[单项选择]具有泻水逐饮，消肿散结功效的药物是
A. 大黄
B. 芒硝
C. 巴豆
D. 牵牛子
E. 甘遂

[单选题]296、变压器的额定电流等于绕组的额定容量除以该绕组的额定电压及相应的相系数（）。
A.三相为1,单相为√3
B.单相和三相均为1
C.单相和三相均为√3

[单项选择]计算机病毒是指能够侵入计算机系统并在计算机系统中潜伏、传播、破坏系统正常工作的一种具有繁殖能力的( )。
A. 流行性感冒病毒
B. 特殊小程序
C. 特殊微生物
D. 源程序

[单选题]已知工作F有且仅有两项并行的紧后工作G和H,G工作的最迟开始时间为第12天,最早开始时间为第8天,H工作的最迟完成时间为第14天,最早完成时间为第12天;工作F与G、H的时间间隔分别为4天和5天,则F工作的总时差为( )天。
A.0
B.5
C.7
D.9

[多项选择]根据税收征收管理法律制度的规定，税务机关在发票检查中，有权采取的措施有 ( )。
A. 调出空白发票查验
B. 复制与发票有关的资料
C. 检查开具发票的情况
D. 销毁非法印制的发票

[单选题]煤质分析中收到基、空气干燥基、干燥无灰基符号依次为（）。
A.ar,ad,d
B.ar,ad,daf
C.ad,d,ar
D.ar,d,daf

[单选题]若停电检修的线路与另一回带电线路（　　），并导致工作时人员和工器具可能和另一回线路接触或接近至表5-1规定的安全距离以内，则另一回线路也应停电并接地。
A.交叉
B.平行
C.同杆架设
D.交叉或接近

[单项选择]Henry can't attend the party （　） at Tom's house at present because he is preparing the speech at the party （　） at Marie's house tomorrow.
A. held; being held
B. to be held; to be held
C. to be held; held
D. being held; to be held

[简答题]生产厂房和仓库应备有哪些必要的消防设备？应注意哪些事项？

[单选题]根据现场营销心理过程，房地产经纪人员在“观察到客户购买意图”和“促进客户成交”之间，一般应按先后顺序完成的营销阶段是（）。
A.诱发客户兴趣和联想，强化房屋综合印象，了解客户购买目标
B.了解客户购买目标，强化房屋综合印象，诱发客户兴趣和联想
C.强化房屋综合印象，了解客户购买目标，诱发客户兴趣和联想
D.了解客户购买目标，诱发客户兴趣和联想，强化房屋综合印象

[单选题]轴性远视眼，眼轴每增加1mm，矫正镜的屈光度数约需
A.加+3.00D
B.减+3.00D
C.加+6.00D
D.减+3.00D

[简答题]什么叫假同期试验？什么叫同期？发电机同期点的电压取自哪里？

[单项选择]对分发给个人的防护装备，（）要进行登记造册，做到有案可查。
A. 中队
B. 大队
C. 支队
D. 总队

[判断题](99926)( )车站对旅客违章携带品应拒绝进站或动员旅客办理托运。(1.0分)
A.正确
B.错误

[多项选择]无碴轨道的特点（）
A. 良好的结构连续性和平顺性
B. 良好的结构恒定性和稳定性
C. 减少维修工作量

[单选题]干酪性肺炎多见
A.黄色痰
B.红色痰
C.黄绿色痰
D.铁锈色痰
E.棕褐色痰

[判断题]从退役士兵中招录的消防员,其服役年限不计入工作时间。( )
A.正确
B.错误

[单选题]关于货币犯罪,下列选项正确的是( )。
A.以货币碎片为材料,加入其他纸张,制作成假币的,属于变造货币
B.将金属货币熔化后,制作成较薄的、更多的金属货币的,属于变造货币
C.将假币赠与他人的,属于使用假币
D.运输假币并使用假币的,按运输假币罪从重处罚

[多项选择]橡胶伸缩缝安装时应注意（）
A. 施工的平整性
B. 接合处的混凝土强度
C. 预埋钢筋的强度
D. 预埋螺栓的埋设牢固

[多选题]
马克思恩格斯认为,在共产主义社会中,将要消失的“三大差别”是()。
A.资产阶级和无产阶级的差别
B.城市与乡村的差别
C.工业与农业的差别
D.脑力劳动与体力劳动的差别
E.统治者与被统治者的差别

[单项选择]实验设计的四原则是（）
A. 收集、整理、分析、结论
B. 齐同、对照、重复、随机
C. 设计、操作、计算、推断
D. 对照、随机、操作、归纳
E. 对照、随机、操作、汇总

[填空题] More and more, the operations of our businesses, governments, and (36)_________institutions are controlled by information that exists only inside computer memories. Anyone clever enough to (37) _________ this information for his own purposes can reap (收割) substantial rewards. Even worse, a number of people who have done this and been caught at it have (38)_________ to get away without punishment. It’’s easy for computer crimes to go (39)_________ if no one checks up on what the computer is doing. But even if the crime is detected, the criminal may walk away not only unpunished but with a glowing (40)_________from his former employers. Of course, we have no (41)_________on crimes that go undetected. But it’’s (42)_________to note how many of the crimes we do know about were detected by accident, not by systematic inspections or other (43)_________procedures. The computer criminals who have been caught may be the victims of uncommonly bad luck. For example, a cert

[判断题] 瓦斯和煤尘同时存在时，瓦斯浓度越高，煤尘爆炸下限越低。（）
A.正确
B.错误

[单项选择]

A

Levi Strauss, a young immigrant (移民) from Germany, arrived in San Francisco in 1850. California was in the middle of the Gold Rush, Thousands of men were coming to California to dig for gold. And Levi Strauss came to sell canvas (帆布) to these gold miners. Canvas is a heavy fabric. So Levi Strauss thought the miners could use the canvas for tents.
One day Strauss heard a miner complain that he couldn’t find clothes strong enough for the work he was doing, Strauss got an idea. He quickly took some of his canvas and made it into pants (裤子). These pants were what the miners needed. In one day Strauss sold all the pants he had made. Strauss wanted to improve his pants. He wanted to make them even better. He bought a fabric that was softer than canvas but just as strong. This fabric came from Nimes, a city in France, and was called "serge de Nimes". The miners liked this fabric. They called it "denim" (from "de Nimes") and bought even more pants from
A. He thought canvas was strong enough for tents.
B. He could improve canvas and make pants out of it.
C. He thought canvas could be used for clothes.
D. Miners could use canvas to make clothes.

[单项选择]

Everything seemed to have become a weapon of war. Our enemies had (1) the most familiar objects (2) us, turned shaving kits into holsters and airplanes (3) missiles and soccer coaches and newlyweds into involuntary suicide bombers. So it was (4) the President and his generals to plot the response.
That is because we are (5) one enemy but two: one unseen, the other inside. Terror on this scale (6) to wreck the way we live our lives-make us flinch when a siren sounds, (7) when a door slams and think twice before deciding (8) we really have to take a plane. If we falter, they win, (9) they never plant another bomb. So after the early helplessness, what can I do I’ve already given blood-people started to realize that (10) they could do was exactly, as precisely as possible,
A. forbade
B. prohibited
C. canceled
D. cut down

[单选题]同条件养护试件拆模后,应放置在( )养护。
A.靠近相应结构构件或结构部位的适当位置
B. 标养室中
C.通风良好的房间内
D. 标养室门口

[多选题]失望的行为表现有( )
A.对将来的预见能力降低
B.反复遭受失败
C.对自己及他人失去信心
D.放弃努力
E.争取实现目标的能力降低

[单选题]5.GB 50540-2009《石油天然气站内工艺管道工程施工规范》规定：严密性试验时，设计压力大于6.4MPa的试验介质应采用（）。
A.空气
B.氮气
C.天然气
D.洁净水

[判断题]对试件中缺陷的发现与评价，主要取决于探伤人员对仪器的调节和判断。( )
A.正确
B.错误

[判断题]循环风是指局部通风机的回风部分或全部进入同一台局部通风机的进风流中。
A.正确
B.错误

[单项选择]通常在产业系统中，大多为( )的故障安全结构。
A. 消极被动式
B. 积极主动式
C. 安全可靠性
D. 运行操作式

[判断题]站台门端门顶箱上的声光报警器应同时具有强声光报警功能，且IBP盘可以控制端门开启/关闭。
A.正确
B.错误

[单选题]1979年元旦，全国人大常委会发表的重要文献是（）
A.《一个国家，两种制度》
B.《告台湾同胞书》
C.《实现两岸和平统一的九项方针》
D.《反国家分裂法》

[判断题]我国现行的房产税和城镇土地使用税均采用按年计算、分期缴纳的征收办法，且具体纳税期限均由省、自治区、直辖市人民政府确定。 ( )

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