热门试题:
[多选题]工作许可后,工作负责人、专责监护人应向工作班成员交待( ),告知危险点,并履行签名确认手续,方可下达开始工作的命令。
A.现场电气设备接线情况
B.工作内容
C.人员分工
D.带电部位
E.现场安全措施
[多选题]地形图的分幅方法分为两类，分别是()。
A.按坐标格网分幅的梯形分幅法
B.按坐标格网分幅的矩形分幅法
C.按经纬分幅的梯形分幅法
D.按经纬分幅的矩形分幅法
[单选题]（）以上地方人民政府住房城乡建设主管部门负责本行政区域内危大工程的安全监督管理。
A.国家
B.市级
C.省级
D.县级
E.略
F.略
[填空题]顺序存储方法是把逻辑上相邻的结点存储在物理位置 【2】 的存储单元中。
[判断题]( )通常水平差即使超过允许误差标准,也只是引起车辆的摇晃和两股钢轨的不均匀受力及磨耗。但如果在18m的距离内,有超过允许偏差的三角坑管理值,则危害较大,易造成脱轨事故。
A.正确
B.错误
[单选题]电路中已知a点电位为2V，b点电位为-3V，若以b点为参考点，则a点电位变为(___)V。
A.-5
B.5
C.-3
D.3
[判断题]持ETC单卡客户，收费人员刷ETC卡，入出口均按ETC车辆处理。
A.正确
B.错误
[简答题]
某高等级公路，全长47.6km，设计车速为130km/h，路面基层采用乳化沥青碎石基层进行施工，该工程的施工单位对基层的施工方法和出现的情况如下：
（1）拌合过程是在现场用人工拌制。
（2）用湿润的集料与阴离子乳化沥青拌合时，不能拌合均匀。
（3）施工人员在拌合混合料时的时间为90s。
（4）乳化沥青碎石混合料拌合均匀后，经过一段时间的破乳后，即进行摊铺。
（5）混合料摊铺后，采用轻型筒式压路机进行初压两遍后又用5t的轻型压路机进行复压两遍。
【问题】1．拌合过程是否可采用人工拌制最适宜的拌合方法是什么
2．当湿润的集料与阴离子乳化沥青拌合不均匀时，应如何处理
3．施工人员拌合混合料的时间是否符合规定对拌合时间有何要求
4．混合料应该在什么时间摊铺这体现的是混合料应具备的什么性质
5．混合料的碾压方法是否正确如不正确，应该如何碾压
[单选题]在线路上焊接时气温不应低于(??? )。放行列车时，焊缝温度应低于 300℃。
A.0℃
B.1℃
C.5℃
D.10℃
[单项选择]混合物中，浓度高于上限时（）发生爆炸。
A. 会
B. 不会
C. 可能
D. 不可能
[判断题]非集中区道岔确认，不需执行“眼看、手指、口呼”。（）
A.正确
B.错误
[单项选择]What is the best title for this passage
A. Danny
B. A Car
C. My Father
D. My Story
[单项选择]根据规定，涉及域名的侵权纠纷案件，由侵权行为地或者被告所在地的中级人民法院管辖。对难以确定的，原告发现该域名的计算机终端等设备所在地可以视为（）。
A. 原告所在地
B. 被告所在地
C. 侵权结果所在地
D. 侵权行为地
[单项选择]痴呆的病位主要在
A. 脑
B. 肝
C. 心
D. 脾
E. 肾
[单选题]客户需要本人面部识别发起合同终止申请需要在（）端发起。
A.智能柜台
B.贷后管理
C.业务支持
D.柜面
[单选题]液位变化时,浮球式液位计浮球所受的浮力也跟着变化,因而可以测出液位的高低。
A.对
B.错
[单选题] 气井关井后，站场的( )仍然处于工作状态。
A.节流阀
B.安全阀
C.放空阀
D.闸阀
[单选题]捣固扒砟深度视起到量而定,不起道捣固时,一般扒至轨枕底以下( )
A.2~4mm
B.5~6mm
C.8~10mm
D.10~12mm
[多选题]下列不是PLC的编程语言项的是（ ）。
A.梯形图
B.系统方框图
C.功能块图
D.顺序流程图
[多选题]下列属于实施劳动关系主体权益保护原则的具体要求的有( )
A.全面保护
B.平等保护
C.优先保护
D.一般保护
E.特殊保护
[单项选择]More than a year has passed since the space shuttle Columbia broke into pieces over central Texas. This past January President Bush announced a long-term program of space exploration that would return human beings to the Moon, and thereafter send them to Mars and beyond. As this magazine (Natural History) goes to press, the twin Mars Exploration Rovers, Spirit and Opportunity, are wowing the scientists and engineers at the rovers’ birthplace--NASA’s Jet Propulsion Laboratory (JPL)--with their skills as robotic field geologists. JPL’s official rover Web site is being stampeded by visitors. The confluence of these and other events resurrects a perennial debate: with two shuttle failures out of 112 missions, and the astronomical expense of the manned space program, can sending people into space be justified, or should robots do the job alone
Modern societies have been sending robots into space since 1957, and people since 1961. Fact is, it’s vastly cheaper to send robots: in most cas
A. Astronauts can react to unforeseen circumstances.
B. Men can find the valuable sample while robots can’t.
C. Robots don’t have such feeling as surprise like men.
D. Robots can’t collect the samples as exactly as men.
[填空题]根据反映活动的深度不同，可把知识分为（）知识和（）知识。
[单项选择]单转动让偏心井口是以（）为中心转动的。
A. 套管
B. 油管
C. 井口
D. 抽油杆
[单选题]小明最近一个周的情绪一直不高，他的班主任王老师为了了解情况去小明家进行家访，这体现了教师劳动的（ ）。
A.创造性
B.长期性
C.示范性
D.劳动空间的广延性
[单项选择]利多卡因主要用于（）。
A. 房性早搏
B. 阵发性室上性心动过速
C. 房室传导阻滞
D. 室性心动过速
E. 心房颤动
[单选题]当抓斗运行到落物地点后，不准（ ），需要下降一定高度。
A.上升操作
B.下降操作
C.开斗操作
D.快速开斗
[多选题]自评价应采用专业人员评价方式。各级运检部可从本单位运维、检修、检测人员中选拔技术骨干组成评价组开展评价，或由( )负责本单位精益化自评价工作。
A.状态评价班
B.变电检修班
C.变电运维班
D.电气试验班
[单选题]关于浆膜腔漏出液的的形成，下列哪项是正确的:
A.血管内外液体交换失去平衡，回流液多于生成的组织液
B.水钠潴留使细胞内液增多是其原因之一
C.血管胶体渗透压主要取决于球蛋白的浓度
D.血管内压力降低
E.淋巴回流受阻
[单项选择]Shopping habits in the United States have changed greatly in the last quarter of the 20th century. Early in the 1900s most American towns and cities had a Main Street. Main Street was always in the heart of a town. This street was (31) on both sides with many various businesses. Here, shoppers walked into stores to look at all sorts of merchandise: clothing, furniture, hardware, groceries. (32) , some shops offered (33) . These shops included drugstores, restaurants, shoe-repair stores, and barber or hairdressing shops. (34) in the 1950s, a change began to (35) . Too many automobiles had crowded into Main Street (36) too few parking places were available to shoppers. Because the streets were crowded, merchants began to look with interest at the open spaces (37) the city limits. Open space is what their car-driving customers needed. And open space is what they got when the first shopping centre was built. Shopping centres, or rather mal
A. built
B. designed
C. intented
D. lined
[单项选择]有一种大气污染物，水溶性，易被上呼吸道吸收，对眼、鼻及支气管有很强刺激作用；动物实验证明有促癌作用。在大气中会形成酸雾和酸雨。该污染物最 有可能是
A. SO2
B. NO2
C. 氯气
D. O3
E. 甲醛
[判断题]喷煤量的调节中罐压优先于喷吹风量调节。( )
A.正确
B.错误
[多选题]（多选题）消防应急照明和疏散指示系统选择应遵循的原则是什么
A.专业性
B.节能性
C.安全性
[单项选择]
A credit card is a (36) of identification (37) which the owner may obtain consumer credit for the (38) of goods or services (39) than pay cash. At the time of sale he (40) his card to his seller, (41) records the purchaser’s name and account number (42) with the price of the purchase. Records are sent to a (43) billing office that calculates the total price of purchase (44) by the card owner during the business month and sends him a (45) .The purchaser returns his personal check, (46) all or part of the total, to the central office, which allocates the money to the (47) entitled to it.
The credit card, an American innovation, first gained national (48) in 1938 (49) oil companies selling gasoline to (50) set up a national pool to honor each other’s cards. Rapid growth, (51) , was not possible (52) the mid-1950’s,when the development of e
A. as
B. when
C. after
D. while
[单选题]120km/h＜Vmax≤160km/h线路，列车紧急制动距离为（ ）。
A.800
B.1100
C.1400
D.2000
