更多"[简答题]CRSC has led the establishment"的相关试题:
[简答题]CRSC has compiled over 620 signaling & communication codes and standards, including Code for Design of Railway Digital Mobile Communication System (GSM-R), Code for Design of Railway Signaling, Construction Quality Acceptance Standard for High Speed Railway Communication Project, and Construction Quality Acceptance Standard for High Speed Railway Signaling Project.
[简答题]CRSC is a core enterprise for safe operation of China's rail transportation; a representative of its national industry of train control system technologies for high speed railways (HSRs); and a leader of its core technologies for HSRs leading the global railway industry.
[单选题]The A320's fuselage has:
A. 4 passenger doors, 4 emergency exits in the cabin, 2 cockpit emergency exits, 3 cargo compartment doors
B. 4 passenger doors, 4 emergency exits in the cabin, 2 cockpit emergency exits, 2 cargo compartment doors
C. 4 passenger doors, 2 emergency exits in the cabin, 2 cockpit emergency exits, 3 cargo compartment doors
[简答题] Tom's father has taught English here since he graduated from Peking University.
[单选题]“Has that guest′s salad got cooked?”,这句话意思是( ) 。
A.这是客人特意点的沙拉。
B.那个客人的沙拉做好了吗?
C.那个客人对沙拉有什么要求吗?
D.有人做客人特意点的沙拉吗?
[单选题] Martin Luther King's Day has been a federal holiday for more than 40 years.
A. T
B. F
[判断题] 伪彩色 LED显示屏是指在 LED显示屏的不同区域安装不同颜色的单基色 LED器件构成的 LED显示屏。( )
A.正确
B.错误
[判断题]康达智能电源屏逆变模块条形LED显示器，LED的显示随着负载的增加而增加，每个LED灯表示额定功率的10%。
A.正确
B.错误
[判断题]伪彩色 LED 显示屏是指在 LED 显示屏的不同区域安装不同颜色的 单基色 LED 器件构成的 LED 显示屏。( )
A.正确
B.错误
[判断题]一体化机车信号主机板的2个LED为1s同步瞬间灭1次闪亮时，指示该主机板检测到接收线圈断线或接收线圈与主机箱之间的电缆断线。
A.正确
B.错误
[判断题]鼎汉电源屏的配电监控板上LED3二极管常亮，LED1，LED2二极管分别闪烁，表示配电监控板工作正常。
A.正确
B.错误
[单选题]高速公路LED信息标志技术中“LED”为( )的英文缩写。
A..发光单级管
B.发光二级管
C.发光三级管
D.液晶显示器
[判断题]HY1951B消防电源液晶显示S8面板LED自检信号，输入高电平可点亮面板上的主电工作、备电工作、主电欠压、备电欠压、备电故障、充电状态等6个LED。
A.正确
B.错误
[单选题]照明LED式灯具中LED损坏大于( )应更新。
A.0.1
B.0.2
C.0.3
D.0.4
[单选题]在多模光纤中通常使用LED,LED是( )。
A. 注入式激光二极管
B. 发光二极管
C. 半导体
D. 金属氧化物半导体
