【多选题】
11中国实行独立自主的和平外交政策,反对任何国家损害我国的___。
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【多选题】
12在新形势下,各国应树立___的新安全观。
【多选题】
1新时代中国共产党的历史使命,就是统揽___,实现伟大复兴的中国梦。
A. 伟大斗争
B. 伟大工程
C. 伟大事业
D. 伟大梦想
【多选题】
2必须党为最高政治领导力量,原因在于___
A. 这是马克思主义政党的基本要求
B. 这是对党领导革命、建设和改革历史经验的深刻总结
C. 这是推进伟大事业的根本保证
D. 这是实现共产主义的客观要求
【多选题】
3坚持党对一切工作的领导,必须做到___
A. 绝对服从党中央的安排
B. 认识到党为最高政治领导力量
C. 确保党始终总揽全局协调各方
D. 全面增强党的执政本领
【多选题】
4___是党的领导决策核心。
A. 中央委员会
B. 全国人民代表大会
C. 中央政治局
D. 中央政治局常委会
【多选题】
5关于党的民主集中制原则中,下列说法正确的有___。
A. 民主与集中是相互矛盾的
B. 应该把民主基础上的集中和集中指导下的民主相结合
C. 充分发扬民主后作出的决定,各地方、各部门不允许有令不行、有禁不止
D. 民主与集中是辩证统一的
【多选题】
6中国共产党是___的先锋队。
A. 中国工人阶级
B. 中国人民
C. 中华民族
D. 世界人民
【多选题】
7中国共产党是中国特色社会主义事业的___。
A. 开创者
B. 推动者
C. 引领者
D. 管理者
【多选题】
8新时代中国共产党的历史使命就是统揽___。
A. 伟大斗争
B. 伟大工程
C. 伟大事业
D. 伟大梦想
【多选题】
9确保党始终总览全局协调各方就必须增强___。
A. 政治意识
B. 大局意识
C. 核心意识
D. 看齐意识
【单选题】
1、闭合燃油泵开关，RBC不吸合时，应检查___。
A. 16DZ
B. 3～4DZ
C. RBC线圈电路
【单选题】
2、当1YD或2YD电枢中的___为零，空压机工作时，造成熔断器4RD或5RD
【单选题】
3、运行中由于___，启动发电机会突然转入固定发电。
A. 1DZ跳开
B. 2RD烧损
C. 电压调整器故障
【单选题】
4、柴油机启动时，受___控制使启动机油泵工作45～60S后
【单选题】
5、走车电路中设置1～3ZJ及DJ、LJ常闭触头是控制___
【单选题】
6.闭合蓄电池闸刀XK，卸载信号灯7XD不亮的原因有___
A. Lc常闭触点不良
B. 6Dz分位 LLC吸合
【单选题】
7.闭合蓄电池开关XK，电压表无显示的原因___
A. 1Rd烧损
B. 蓄电池亏电
C. 蓄电池有反极现象
【单选题】
8.运行中，启动发电机停止发电的原因有___
A. 自动开关2DZ跳开
B. FLC线圈电路故障
C. 转入固定发电
【单选题】
9.主手柄从0位提到1位，机车不换向的原因为：___。
A. 换向电路有接地点
B. 低压风缸风压不足500kPa
C. 1-6C的常闭触头任一虚接
【单选题】
10.固定发电工况下，启动发电机的端电压在柴油机达到额定转速时，才可达到___。
【单选题】
11.工况转换开关1HKg、2HKg在牵引位时，通过主触头的控制，使牵引电动机成为( )电动机工作。
【单选题】
13.步进电动机是直流励磁的同步电机，它是将( )变成转子角位移的执行元件。
【单选题】
14.功率电阻在减载极限位时，Cf有___的励磁电流。
【单选题】
15.励磁电路中，电阻___的整定值决定了同步牵引发电机的最高电压限制。
【单选题】
16.、一些电磁接触器，为满足吸合之初与保持吸合时对电磁吸力的不同需要，所以要设( ).
A. 启动线圈
B. 电阻限流机构
C. 串联双绕组线圈
【单选题】
17.磁场削弱自动不能过渡，手动过渡正常时，为___故障。
A. 1ZJ常闭触头
B. 过渡装置
C. 1～2XC线圈
【单选题】
18.启机后闭合5K，辅助发电机电压显示11OV，蓄电池充放电电流表显示放电的原因是：___。
A. 2RD烧损
B. QC犯卡、烧结不释放
C. 逆流装置NL故障
【单选题】
19.走车电路中某电器线圈烧损短路时，主手柄l位___跳开。
【单选题】
20.使用接地开关DK及故障开关GK，均无法排除DJ动作时的原因是：___。
A. 主电路正端大线接地
B. 接地继电器DJ故障
C. 低电位点接地
【单选题】
21.励磁整流柜2ZL整流元件损坏时，机车___。
A. 过流继电器动作
B. 功率不足
C. 功率超高
【单选题】
22.牵引发电机突然发生短路的原因有：___。
A. 牵引发电机温度过高
B. IZL整流元件击穿
C. 电流互感器1～2LH故障
【单选题】
23.东风4型机车承载式车体的优点是：___。
A. 减少轴重转移
B. 重显轻、承载能力强
C. 减小了机车噪音
【单选题】
24.东风4B型客运机车构造速度为：___
A. 120km／h
B. 140km／h
C. 170km／h
【单选题】
25.机车牵引齿轮传动比越大，则___。
A. 速度越高、牵引力越大
B. 速度越低、牵引力越大
C. 速度越高、牵引力越小
【单选题】
26.由启动变速箱驱动的装置有：___。
A. 启动发电机、励磁机、测速发电机、后通风机
B. 启动发电机、励磁机、静液压泵、前通风机
C. 启动发电机、励磁机、测速发电机、前通风机
【单选题】
28.当机车浮沉振动时，油压减振器的鞲鞴与缸筒所形成的上、下油腔容积会发生变化，其中的工作油在流经心阀或进油阀上的节流空时由于___作用而衰减了机车的振动。
【单选题】
29.使机车车体与转向架在纵向以关节形式连接起来，传递牵引力和制动力，以及车体与转向架间的各种冲击力，该部件是___。
A. 二系悬挂装置
B. 车体侧挡
C. 牵引杆装置
【单选题】
30.东风4B型机车牵引电动机的悬挂采用了___结构
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make it， with open arms ，strip off，keep back，
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advocate，involve，confine，respond，subsequent ，distinct ，intense， fulfill，circumstance， reconcile
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advocate，involve，confine，respond，subsequent ，distinct ，intense， fulfill，circumstance， reconcile
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advocate，involve，confine，respond，subsequent ，distinct ，intense， fulfill，circumstance， reconcile
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in sb. 's words，count on，make sense of ，reserve for， shield from，call on， sum up， relate to ，in need，
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in sb. 's words，count on，make sense of ，reserve for， shield from，call on， sum up， relate to ，in need，
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