【判断题】
路肩宽度一般应不小于0.6m，困难地段不得小于0.4m
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电缆沿路堑埋设时，应在堑顶天沟边2m以外，如无天沟，应在堑顶边3米以外埋设
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使用木枕应遵循木枕宽面在下，顶面与底面同宽时，应使树心一面向上
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道岔与道岔之间可以铺设与过渡轨枕不同规格的轨枕
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曲线地段外股应使用标准长钢轨，内股应使用厂制缩短轨调整钢轨接头位置
【判断题】
25m钢轨铺设在当地历史最高、最低轨温差大于85℃的地区应个别设计
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尖轨尖端轨距加宽，按不大于3‰递减至基本轨接头
【判断题】
木枕地段捣固时，应在钢轨两侧各300mm范围内捣实道床，轨下部分加强捣固
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在风力较小条件下，拉绳测量每个测点正矢，测量二次取平均值
【判断题】
碎石道床枕木盒清筛深度为枕底向下50～100mm，并做好排水坡
【判断题】
尖轨尖处轨距的作业验收的容许偏差管理值为±2 mm
【判断题】
钢轨标记轧制在轨腰上，传统上有凸标和凹标两种，凸起的标志为厂标、钢轨类型、钢种代号、制造日期，凹下的标志为炉罐号
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地铁列车速度较高的铁路上，主要发生波纹磨耗，且主要出现在直线和制动地段
【判断题】
钢轨接头联结零件是由夹板、螺栓、弹簧垫圈和扣件等组成
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混凝土枕钢筋或钢丝外露，钢筋未锈蚀，长度超过80mm，判定为重伤
【判断题】
混凝土枕碎石道床顶面应与轨枕中部顶面平齐，木枕碎石道床顶面应低于木枕顶面20mm
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长度大于100m的隧道内和隧道外U形结构地段及高架桥和大于50m的单体桥地段，宜采用短枕式或长枕式整体道床
【判断题】
整体道床应设置伸缩缝，隧道内宜每隔12.5m,形结构地段和高架桥上宜每隔6m设置一个
【判断题】
在结构沉降缝和高架桥梁缝处，可不设置道床伸缩缝
【判断题】
排水沟的纵向坡度应与线路坡度一致，线路平坡地段，排水沟纵向坡度不宜小于3％
【判断题】
短轨枕在工厂预制，混凝土强度等级为C40，其横断面为梯形，底部外露钢筋钩，以加强道床混凝土的联结
【判断题】
地下线道床排水沟纵向坡度宜与线路坡度一致
【判断题】
线路平坡地段，排水沟纵向坡度不宜小于2‰
【判断题】
车场线有砟道床的道床肩宽不应小于200mm
【判断题】
无缝线路应设置位移观测桩，设置的基础应牢固稳定。钢轨伸缩调节器和道岔应按一个单元轨节设置位移观测桩
【判断题】
减振级别宜划分为中等减振、高等减振和特殊减振
【判断题】
警冲标应设在两设备限界相交处，其余线路标志应安装在行车方向右侧司机易见的位置
【判断题】
路基应有完善的排水系统，并宜与市政排水设施相结合
【判断题】
路基排水纵坡不应小于2‰，单面排水坡段长度不宜大于400m
【判断题】
维修工作，必须掌握设备技术状态变化规律，贯彻“安全第一，预防为主”的原则
【判断题】
道岔范围内不设轨底坡，若与有轨底坡轨道连接时，道岔前后两根轨枕铁垫板下设轨底顺坡垫板过渡
【判断题】
60kg/m钢轨9号单开道岔采用相离圆曲线线型，60AT弹性可弯尖轨，尖轨尖端采用藏尖式，跟端采用间隔铁结构
【判断题】
轨下部位混凝土道床厚度，直线地段不宜小于130mm、曲线地段不宜小于110mm
【判断题】
进行绝缘接头拆卸作业时，需通号人员配合，长柄工具应有绝缘套，作业中不得将两股钢轨搭接
【判断题】
更换钢轨作业的目的是维持线路良好状态，确保地铁列车行车安全
【判断题】
换入钢轨与换出钢轨类型不同时，需配备异型夹板及异型垫板
【判断题】
切割钢轨时要用电锯全断面锯轨，并使轨顶面与轨头断面垂直，钻眼时要倒棱
【判断题】
换轨段为混凝土枕时，应按规定拆卸扣件及接头夹板。拆卸完应整体摆放到相应位置
【判断题】
换轨时，轨下大胶垫不得缺少，压溃或缺损的不用换掉
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I have always been grateful ___ Fred __the generous and helpful information when I was at the crossroads.
A. to … for
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I think we both need to ___ the past, be happy about what we had for a time, learn from our experiences, and move on from there.
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We appreciate your efforts in making changes in your schedule and think that this new arrangement is now ___ to us.
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The woman who died in a car crash last Saturday in the suburbs has been ___ as Kate Johnson, a 25-year-old office clerk.
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My nephew failed in the College Entrance Examination, and we were all very sorry that he did not ___ to the university.
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Almost half of that group will experience stress ___ enough to call for professional help.
A. tense
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If you grow too fast your entire economy could completely shut down and bring growth to a(n) ___.
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I tried my best to drive inside in order to avoid the edges that might make me ___ the steep slope.
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When the driver heard that there was a bomb on the bus, he immediately ___ to the side of the highway and radioed the police.
A. put out
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She was very ___ to become a manager in our customers’ office, but finally accepted our offer.
A. eager
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In the race, it looked as if he would be the first, but then another young man who was close behind him put on speed and ___ by a few seconds.
A. beat him for it
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It is really helpful to have someone like you that we can ___ and count on during difficult times.
A. lean on
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Women have a greater ability to ___ names with faces than men do, and they are also better at recalling lists.
A. associate
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He was always ready to help others and managed to ___ his friends ____being hurt.
A. expose … to
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【单选题】
Older people are less likely to be ___ their negative emotions (情绪) and more likely to focus on the positive.
A. reserved for
B. caught up in
C. beat up to
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【单选题】
I don’t have any bandage, so I have to ___ pressure to the wound to keep the bleeding down.
A. apply
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It is important that whichever candidate (候选人) is picked the loser should accept the defeat ___.
A. in advance
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___ that new homes cost more than older homes, but that is not true across the country anymore.
A. It used to be
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The boss ___ his employees to work longer hours as the company is dreadfully short of staff at present.
A. called on
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The president’s visit and ___ discussions led to a plan that aimed to improve the trade relations between the two countries.
A. emerging
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The author ___ his general idea mainly through statistics and results obtained from a survey (调查) about auto customer services in the United States.
A. assumes
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【单选题】
People in this town starved, several buildings were bombed and crime ___ because you had to steal to eat.
A. eroded
B. reflected
C. released
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【单选题】
Olympic recognition for bodybuilding (健美) remains ___ since some argue that bodybuilding is not a sport because the actual contest does not involve the same sort of efforts as “real” sports.
A. controversial
B. conventional
C. characteristic
D. influential
【单选题】
Tom tried to justify his absence from the meeting by ___ that he had been ill that day.
A. admitting
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___ the huge financial benefits, biological companies have been rushing to set up laboratories and new research projects.
A. Aware
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Unfortunately, ___ lack of funds, the studies he began just two months ago, had to be ended early.
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With a good command of English, he soon got ___ to working with British people.
A. accustomed
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What needs to be ___ here is that language and culture interact, and that understanding of one requires understanding of the other.
A. altered
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Policies and organizations must be created to meet workers’ hopes, and to ___ new problems that inevitably arise between workers and managers.
A. compromise
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To keep the wheels of industry turning, we produce consumer goods in endless quantities, and, in the process, are rapidly ___ our natural resources.
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As a person who loves peace, he is committed ___ realizing peace between countries.
A. of
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Learning how to use chopsticks is easy for me, ___ learning how to conduct myself at the table is quite difficult.
A. whereas
B. however
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___ that the patient smokes 50 cigarettes a day, it would be reasonable to assume there is some lung damage.
A. To give
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C. Given
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Kenyan (肯尼亚的) women tend to vote for those who could provide them ___ the necessary food to live on.
A. of
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___ all obstacles and failures, the scientist continued doing his experiments day and night.
A. In spite of
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C. As a matter of
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I’m willing to ___ that a larger car would have cost more, but I still think we should have bought one.
A. withdraw
B. indicate
C. abandon
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【单选题】
Manufacturing (制造) companies spend millions of pounds on advertisements, trying to ___ customers that their products are better than those of other companies.
A. confine
B. convince
C. depress
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