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【单选题】
Alice used to be terribly shy, but working abroad for a year has completely ___ her.
A. solved
B. transformed
C. characterized
D. regulated
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答案
B
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Chinese Mandarin (普通话) is ___ for foreigners to learn because the changes in the tone will totally change the meaning of words.
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Take action on those things that will have the biggest ___ impact on your life with the least amount of effort.
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The adoption of this measure will greatly reduce the ___ of greenhouse gas emissions (排放物), which may help slow global warming.
A. loan
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Sometimes, even when the mind ___ functioning, the body keeps on working normally.
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Jeffery expressed his ___ about the health and fitness of his co-workers, but they said they didn’t want to “waste time” on an exercise bike or jogging.
A. agony
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Such chemicals are indeed negatively ___ those humans to whom they are expose D.
A. risking
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He works hard every day to make more money, but he ___ his health, time with his family, and the hobbies he once love D.
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Whatever you say in the paper has to ___ your own thinking; hence simply repeating the professor’s opinions or whatever is in the readings will not get you very far.
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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.
A. let go of
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My brother and I managed to ___ with each other and we soon made peace after a week’s quarrel.
A. heal
B. reconcile
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The two robbers in a stolen car tried to ___ a police roadblock (路障), but faile D.
A. break in
B. break off
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A. justified
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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.
A. take it
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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.
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A. expose … to
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13.发现危险情形、本人及队友受伤或身体不适等,必须立即向___报告,同时采取相应处置措施,排除或避开险情,停止作业或撤离现场,医治伤情或入院治疗,严禁___。
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转向架构架是___的骨架,它将转向架各零部件组成一个整体,用以承受和传递各种作用力和载荷。
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C. 车体
D. 转向架
【单选题】
JW-4G接触网作业车的车体与转向架间的减震采用___支承的橡胶堆旁承。
A. 两点
B. 三点
C. 四点
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当车辆运行速度大于20km/h时,GYK间隔___s进行报警,要求司机按压警醒键进行应答,否则实施紧急制动,以保证运行安全。
A. 20
B. 30
C. 120
D. 130
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接触网专用平车大修周期为50000km或___年。
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B. 6
C. 8
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JW-4G接触网作业车微机控制显示器是车辆工作状态的___界面
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作业车前端操纵台点火开关的启动信号通过逻辑控制器互锁后给ECU启动指令,ECU是否输出启动继电器信号由___自动判断。
A. 控制台
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C. ECU
D. 发动机
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如果发动机没有启动,而启动信号有效超过12秒时,ECU自动切断该信号输出,主要保护___、蓄电池等。
A. 启动机
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C. ECU
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WP12系列发动机机的充电发电机额定电压为___,带有晶体管调节器。
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JW-4G型接触网作业车电气控制柜位于___内。
A. 前端操纵台
B. 后端操纵台
C. 床铺
D. 铁箱
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锁定机构安装在调平装置电气控制柜___。
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B. 后方
C. 上方
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转速表内方框为小时计,当转速大于___r/min时,小时计开始计时。
A. 500
B. 400
C. 300
D. 200
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听觉信号长声为___S,短声为1S 。
A. 1
B. 2
C. 3
D. 4
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JW-4G型接触网作业车的操纵台为___操纵台。
A. 模块化整体式
B. 分块式
C. 单边式
D. 合作式
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高速铁路的线路标志包括___、半公里标。
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B. 减速地点标
C. 预告标
D. 警冲标
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发动机转速表的功能是显示车辆手动换挡工况时的发动机___和工作小时。
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B. 工作小时
C. 工作转速
D. 里程
【单选题】
拧紧人力制动机信号的鸣笛为___。
A. 一短声
B. 两短声
C. 三短声
D. 连续短声
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车轴、车钩探伤检查的时间为___。
A. 三个月
B. 半年
C. 一年
D. 两年
【单选题】
GYK显示屏的功能是对车辆运行过程中对___进行监控显示,如行车模式、行车信号、车辆速度。
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【单选题】
发动机转速表的功能是显示车辆___时的发动机工作转速和工作小时。
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B. 自动换档工况
C. 断电情况
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【单选题】
预热指示灯的功能是指示发动机___状态。
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C. 预热
D. 点火
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旁路制动按钮用于___情况下对车辆实施快速制动,一般用于空气制动机故障时的操作。
A. 非紧急
B. 紧急
C. 平时
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【单选题】
直流变换器:为逻辑控制器及液晶显示屏提供稳定的直流___V电源。
A. 12
B. 24
C. 28
D. 36
【单选题】
液力传动箱随机所带对___自身故障诊断的控制模块。
A. 分动箱
B. 发动机
C. 吊机
D. 传动箱
【单选题】
油门开度信号:接Ⅰ、Ⅱ端___,提示控制器司机期望的发动机转速变化。
A. 操作手柄
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C. GYK
D. 速度表
【单选题】
JW-4G型接触网作业车转速控制采用___控制转速的方式。
A. 电感
B. 电阻
C. 电流
D. 电压
【单选题】
当换挡控制器处于正常工作状态时,状态指示灯___。
A. 闪烁
B. 熄灭
C. 常亮
D. 无显示
【单选题】
换挡控制器具备故障诊断和___功能。
A. 自动排除
B. 报警
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D. 自动解除
【单选题】
当微机控制系统换档控制器出现故障无法时,可以使用___控制发动机转速和液力传动箱档位。
A. 油门控制器
B. 手柄控制器
C. 档位控制器
D. 液压传动
【单选题】
油门控制器上有两个LED指示灯,红色指示灯指示输出到发动机控制器的电压(油门控制信号),___指示灯越亮。
A. 电流越高
B. 电流越低
C. 电压越高
D. 电压越低
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