热门试题:
[判断题]正在检修中的设备需要使用时，须经检修人员同意。检修完毕，检修人员应将其结果记入《行车设备检查登记簿》。《技规》第402条
A.正确
B.错误
[多选题]附着式升降脚手架( )安全装置符合规范及专项施工方案要求。（ ）
A.A、防坠落
B.B、防坍塌
C.C、防倾覆
D.D、防雷击
E.E、防台风
[简答题]试画出压气机两级压缩中间冷却的p-V图，并表示出与单级压缩相比少消耗的功量。
[单项选择]MG6032和MG6008的WEB网管高级用户权限的默认密码是（）.
A. senior
B. admin
C. user
D. gaoke
[判断题]人民警察在执行职务时目击到犯罪情况的，可以作为证人出庭作证。（ ）
A.正确
B.错误
[多选题]ATS系统从联锁系统获取的信息有（ ）。
A.进路状态
B.道岔状态
C.列车运行状态
D.区段状态
[单项选择]成批生产中、小型锻件，一般应采用的锻造方法是（）
A. 自由锻
B. 模锻
C. 胎模锻
D. 锻焊组合
[填空题]切削加工45钢时通常应采用（）类或（）类硬质合金刀具。
[单项选择]以下基本抽样方法中，一般来说哪一种的抽样误差最大（）
A. 单纯随机抽样
B. 系统抽样
C. 整群抽样
D. 分层抽样
E. 多阶段抽样
[单项选择]分泌胃蛋白酶原的胃黏膜细胞是（）
A. 壁细胞
B. B细胞
C. 嗜银细胞
D. 主细胞
E. 上皮细胞
[判断题]供电方作业人员应会同客户工作负责人检查现场所做的安全措施，对具体的设备指明实际的隔离措施，证明检修设备确无电压。
A.正确
B.错误
[单项选择]不是药物流产失败的原因。（）
A. 蜕膜靶水平上米非司酮含量不足
B. 孕酮受体的遗传变异
C. 患者自行服药
D. 药物代谢的个体差异
[判断题]更换道岔施工，在转辙部分起道、拨道完毕后，要及时配合供电部门进行道岔搬动调试，确保道岔搬动灵活，尖轨密贴。
A.正确
B.错误
[单选题]飞机磁罗盘存在的主要误差是
A.滞后误差
B.高度误差
C.密度误差
D.所有选项都正确
[填空题]
Walking—like swimming, Bicycling and running—is an aerobic exercise, (31) builds the capacity for energy output and physical endurance by increasing the supply of oxygen to skin and muscles. Such exercises may be a primary factor in the (32) of heart and circulatory disease.
As probably the least strenuous, safest aerobic activity, walking is the (33) acceptable exercise for the largest number of people. Walking (34) comfortable speed improves the efficiency of the cardiorespiratory system (35) stimulating the lungs and heart, But at a more gradual rate (36) most other forms of exercise.
In one test, a group of men 40 to 57 years of age, (37) at a fast pace for 40 minutes four days a week, showed improvement (38) to men the same age on a 30 minute, three-day-a-week jogging program in the same period. Their resting heart rate and body fat decreased (39) . These changes sugge
[判断题]【远航学校】井架与施工用电梯和脚手架等与建筑物通道的两侧边，必须设防护栏杆。
A.正确
B.错误
[不定项选择]我国《婚姻法》规定：“父母和子女有相互继承遗产的权利。”这是一条：
A. 授权性规则
B. 确定性规则
C. 权利性规则
D. 强行性规则
[单选题] 折棚风挡破损长度超过( )在运用客车质量鉴定中属于C类故障。
A.100 mm
B.200 mm
C.300 mm
D.400 mm
[单选题]货运场站应在业务操作场所安装视频检视设备，应保存不少于（ ）天的监控资料
A.30
B.50
C.60
D.90
[单项选择]Jo was the most popular boy in the school. He was tall and strong, with dark brown haft and green eyes and the sweetest smile. He was good at all sports and he was top of his class.
There was keen competition among the girls to attract his attention. Yet, Jo was nice to all of them, even the plain, shy ones but he didn’t have a steady girlfriend.
Ella was the only one who didn’t seem to have any romantic interest in him; she treated him friendly and the others didn’t consider her as rival. But she knew him very well. Jo and Ella were the best friends. They talked about their problems, exchanged ideas, gave advice to each other and played jokes on each other occasionally.
One day, Jo didn’t go to school. He stayed away for a week, then the news came: his mother had died.
When he went back to school, he looked fired and sad, like someone who walks without knowing where he’s going. No one knew what to say to him. The easy smile and superficial chat couldn’t rea
A. Right.
B. Wrong.
C. Doesn’t say.
[多选题]对于蒸汽吹扫，说法正确的是（ ）。
A.管道绝热工程完成后再进行蒸汽吹扫
B.流速不应小于20m/s
C.吹扫前应先进行暖管并及时疏水
D.应按加热、冷却、再加热的顺序循环进行
[单选题]一台微机的型号中含有i3、i5、i7等内容时，其含义是（ ）。
A.运算控制单元的档次
B.显示器大小
C.主存储器容量大小
D.硬盘容量大小
[多选题]简单包过滤防火墙主要工作在（）。
A.链路层
B.网络层
C.传输层
D.应用层
[单选题]1.24持C1准驾车型的，不准驾驶_____准驾车型。
A.C4
B.C2
C.C3
D.C5
[多选题]新中国对民族资产阶级实行和平赎买的必要性在于()。
A.民族资产阶级经济实力雄厚，掌握国家经济命脉
B.民族资产阶级有一定的技术专长和管理经验
C.民族资本主义经济构成整个国民经济的基础
D.中国经济落后，需要利用民族资本主义经济有利于国计民生的一面
[单项选择]（）是由于外形或意义上的相似而引起的两个事物问的组合而产生的思维活动。
A. 接近联想
B. 相似联想
C. 对比联想
D. 因果联想
[单项选择]两个交换局利用TUP消息完成一次呼叫接续控制，接续过程顺利，双方通话后被叫挂机结束通话。此次呼叫对主叫计费。下面列出了几个信令过程，请选出最有可能的一个。（信令过程以双方发送的消息顺序排列）（）
A. IAM、SAO、SAO、ACM、ANC、CLF、RLG
B. IAM、STB、CLF、RLG
C. IAM、SAO、SAO、ACM、ANC、CBK、CLF、RLG
D. IAM、SAO、SAO、ACM、ANN、CLF、RLG
[单项选择]我国法定面积计量单位包括平方米、（）、平方厘米、平方毫米。
A. 立方分米
B. 立方厘米
C. 平方分米
D. 立方毫米
[单选题]在有人看守的桥隧建（构）筑物及可能危及行车安全的坍方落石地点，根据需要设遮断信号机。该信号机距防护地点不得小于（） m。
A.50
B.80
C.100
D.120
[简答题]你是张海。你的朋友王敏写信给你，询问你课余时间都做些什么。你回信给她，信件内容包括：
(1)你的爱好并举例说明；
(2)信尾写上希望她做什么。
[单选题]双机热备计算机联锁系统，系统正常工作时，切换手柄（复位按钮）应处在“（ ）”位置，备机与工作机（主机）处于同步工作状态。
A.手动
B.自动
C.A机
D.B机
[单项选择] People thinking about the origin of language for the first time usually arrive at the conclusion that it developed gradually as a system of grunts, hisses and cries and (1)_______a very simple affair in the beginning. (2)_______, when we observe the language behaviour of (3)_______we regard as primitive cultures, we find it (4)_______complicated. It was believed that an Eskimo must have at the tip of his tongue a vocabulary of more than 10,000 words (5)_______to get along reasonably well, much larger than the active vocabulary of an average businessman who speaks English. (6)_____, these Eskimo words are far more highly inflected (词尾变化的) than (7)_______of any of the well-known European languages, for a (8)_______noun can be spoken or written in (9)_______hundred different forms, each (10)_______ a precise meaning different from that of any other. The forms of the verbs are even more (11)_______. The Eskimo language is, therefore, one of the most difficult in the world to learn, (12
A. However
B. Moreover
C. Though
D. Therefore
[判断题]当法规更新后与公司内部操作规程有冲突时，应优先执行操作规程
A.正确
B.错误
[单项选择]实数域上的不可约多项式有哪些？（）
A. 只有一次多项式
B. 只有判别式小于0的二次多项式
C. 只有一次多项式和判别式小于0的二次多项式
D. 任意多项式
[单选题]电能表的( )在铭牌标识上以记入圆圈的等级数字表示的。
A.电能表常数
B.相数
C.制造标准
D.准确度等级
[多选题]JZ-7型空气制动机自阀重联柱塞阀，当自阀手柄在取柄位时，柱塞右移，沟通（）自锁到（）的通路，使中继阀自锁。
A.列车管（2号）
B.中均管（4号）
C.总风管（3号）
D.遮断管（8号）
[单项选择]《素问·六微旨大论篇》提出：“是以升降出入，无器不有”，说明气的运动具有( )
A. 代表性
B. 对立性
C. 普遍性
D. 特殊性
E. 对立性
