热门试题:
[单选题]轨道车上常备的安全防护用品止轮器数量为( )。
A. 4个
B. 2个
C. 1个
D. 3个
[填空题]锅炉蒸发设备由（），（），（）和（）及一些连接管等部件组成。
[单选题]选择肱动脉测量血压时,正确的做法是( )
A..患者采取坐位或卧位体位
B..测量肢体与心脏、血压计“0”点在同一水平
C..袖带松紧以能放入一指为宜
D..袖带下缘距肘窝2~3Cm
E..以上均是
[单选题]( 判断题 ) 水和蒸汽流经各受热面时吸收的热量为锅炉有效利用热。( )
A.正确
B.错误
[单项选择]如果套期保值者能争取到一个有利的（），套期保值交易就能赢利。
A. 利息
B. 基差
C. 现货价格
D. 期货价格
[单选题]现场中白炽灯泡（），则可以认定其在火灾时曾处于通电状态。
A.泡壳软化
B.泡壳外粘连炭化物
C.泡壳内有金属喷溅物
D.灯丝断裂
[多选题]下列哪些是巡视的要求（ ）
A.认真：巡视人必须以认真负责的态度去巡视所管辖范围的每个角落
B.细致：从细微处着手，做到防微杜渐，从看、摸、嗅、听四觉入手
C.周全：岗位内的设施设备、告示牌、安全警示标志乃至螺丝都应检查
D.及时：巡视、记录汇报、处理及时
E.真实：填写台帐必须真实，不能有弄虚作假，发现问题及时跟进，完成后签名确认。
[判断题]( )曲线正矢日常保持容许偏差管理值表规定，R>800m其他站线上圆曲线正矢最大最小值差为12mm。
A.正确
B.错误
[单选题]
在下列关系运算中,不改变关系表中的属性个数但能减少元组个数的是()。
A.并
B.交
C.投影
D.笛卡尔积
[填空题]普速旅客列车，每班组配备约束带 条；每车体配备伸缩式腰叉、臂盾各 个，防爆毯1套。
[判断题]杆塔连接螺栓应逐个紧固，验收时，应对重要节点等关键处的连接螺栓用扭矩扳手进行抽检，抽检数量不少于40颗。（ ）
A.正确
B.错误
[单项选择]
It was a beautiful summer day and I was taking a walk in the downtown area of Madrid.
When I turned a street (56) I heard the voice of a lovely Spanish singer (57) from a nearby cafe. The music (58) me, so I went to the cafe to hear it (59) .
I sat down at a table near the door. The waiter came over, and I (60) a glass of wine.
While (61) my wine, I listened to the soft music. The (62) was a young lady, a little too fat, but (63) pretty. A black young man was playing the piano.
The waiter returned (64) the glass of wine and put it on the (65) . I started drinking the wine slowly and (66) the other people in the cafe. They were all men (67) women seldom go into the cafes in Spain.
There were three men (68) at a table near mine. I could (69) by their accents that one of them was an American, one an Englishman and the third man a (70) . The
A. reached for
B. reach
C. asked
D. want
[单选题]神经元的胞体与轴突之间的物质运输和交换依赖于 （ ）
A.血液供应
B.细胞外液
C.顺向轴浆流动
D.反向轴浆流动
E.双向轴浆流动
[单项选择]在PD1-15型大站电源屏中，BBD亮灯，表示交流电源屏内输出的控制台（）电源工作正常。
A. 转换电源
B. 表示灯
C. 接触器
D. 电铃
[判断题]太阳在夏至离地球最近。（ ）
A.正确
B.错误
[单选题]库斯莫尔大呼吸最常见于:
A. 神经症
B. 心源性呼吸困难
C. 血源性呼吸困难
D. 糖尿病酮症酸中毒
E. 肺源性呼吸困难
[填空题]Saying that Pablo Picasso dominated Western art in the 20th century is, by
now, the merest commonplace. In his 50th birthday, the little Spaniard from (53)______
Malaga had become the very prototype of the modem artist as public figure No
painter before him had a mass audience in his own lifetime. The total public for (54)______
Titian in the 16th century or Velazquez in the 17th were probably no more than (55)______
a few thousands of people—but that included most of the crowned heads, (56)______
nobility and intelligentsia of Europe. Picasso’s audience—meaning people who
had heard him and seen his work, at least in republication—was in tens, (57)______
possibly hundreds, of millions. He and his work were the subjects of unending
analysis, gossip, dislike, adoration and rumor.
There seems a little doubt that the greatest of Picasso’ work came in (58)______
the 30 y
[单项选择]从汉朝的华佗到抗日战争时期的白求思都致力于“救死扶伤”.体现了职业道德的（ ）。
A. 共同性
B. 连续性
C. 民族性
D. 社会性
[单选题]（2015年）根据土地管理法，国家建立全国土地管理信息系统，对（ ）状况进行动态监测。
A.土地权属
B.土地利用
C.土地宗地面积
D.土地污染
[单项选择]从业人员在作业过程中，应该（）各生产单位的安全生产规章制度和操作规程，服从管理。
A. 严格遵守
B. 尽量遵守
C. 部分遵守
D. 不遵守
[单选题] 消息认证的内容不包括______。
A. 证实消息发送者和接收者的真实性
B. 消息内容是否受到偶然或有意的篡改
C. 接收者是否及时接收到消息
D. 消息的序列和时间
[单选题]在行车线上更换铆钉时,应铲除一个铆钉,上紧一个精制螺栓,必要时,可使用()以下的冲 钉
A.10%
B.20%
C.30%
D.35%
[判断题]干粉灭火剂对燃烧有抑制作用,灭火速度快,但易复燃。( )
A.正确
B.错误
[判断题](86212)( )遵章守纪、保护安全不能够维护铁路职工自身利益。( ) (1.0分)
A.正确
B.错误
[判断题]小李为人热情，驾驶出租汽车过程中发现其他车辆制动灯不亮、车门没关好等现象时，经常开窗挥手示意，说明小李具有较强的安全行车意识。
A.正确
B.错误
[单选题]在发布广播时，要语调适中，语速保持在（ ）字（词）/秒
A.3—5
B.4—6
C.4—5
D.3—4
[单项选择]以上哪项不是骨软骨瘤的超声表现
A. 瘤体多较大
B. 瘤体呈分叶状
C. 瘤内血流丰富
D. 瘤内多是实性低回声
E. 瘤内低回声见散在发布的强回声斑点
[多选题]信息资料的收集方法，总体可分为（ ）。
A.二手资料
B.访问法资料
C.实验资料
D.描述性资料
E.分析性资料
[单项选择]HTG-60-Ⅱ型陶瓷过滤机上共有陶瓷过滤板（）。
A. 150块
B. 200块
C. 180块
D. 220块
[单项选择]现代化的生产和管理，要求劳动者不仅要以体力和经验为基础，更重要的是以智力和知识为基础。即使传统的产业部门，由于微电子和自动化技术的渗入，也促使原来由普通劳动者承担的大量劳动，转变为由工程技术和管理人员来承担。从中可得出（）
A. 我国现已不需要传统产业
B. 现代化生产已不需要劳动者的体力经验
C. 社会的发展在任何时候也离不开体力劳动者
D. 现代社会经济和科技发展要求人应得到全面发展
[多选题]
What are two security appliances that can be installed in a network? (Choose two.)
A. ATM
B. IDS
C. IOS
D. IOX
E. IPS
F. SDM
[填空题]Some twenty years ago, the performance of girls and boys in class was compared. Boys (36) better in exams, so various (37) were introduced to improve the performance of girls, including having (38) sex girl-only classes. Now, the situation is (39) , with girls consistently out-performing boys.
So, what has gone wrong with boys, and what can be done about it John Dunsford, leader of the association of head teachers of (40) schools, says that that the academic (41) of boys is a problem which has its (42) in society rather than the classroom. Girls, ,more than boys; see education .as a passport to a good job. On the other hand, according to Penny Lewis, a head teacher, young men lack (43) , which they hide with a show of bravado (虚张声势). They’re uncertain about their place in society. Some boys grow up in families where there is no male role model to follow.
Moreover, boys may lear
[单项选择]中国最早的插花展览是（）的“锦洞天”。
A. 宋代
B. 元代
C. 五代
D. 明代
[判断题]发生危险化学品事故，事故单位安全管理人员应当立即按照本单位危险化学品应急预案组织救援，并向当地安全生产监督管理部门和环境保护.公安.卫生主管部门报告。( )
A.正确
B.错误
[单选题]三极隔离开关在调整其三相同期性时，三相不同期性应小于（ ）。
A.2
B.3
C.4
D.5
