A. Yield/Detour B. Yellow Light/Danger C. Youth Drive D. Yearly Discount 相关知识点: 试题来源: 解析 A。“Y/D”在交通标志中表示让行/绕行(Yield/Detour)。选项 B“Yellow Light/Danger”不是这样的缩写;选项 C“Youth Drive”不是交通标志含义;选项 D“Yearly Discount”与交通无关。反馈...
The yellow stop-sign craze began in Detroitin 1915, a city that five years later installed its first electrictraffic signal, which happened to include the very first ambertraffic light, at the corner of Michigan and Woodward Aves.1. What are the earliest traffic signals designed for from the...
T he yellow stop-sign craze began in Detroit in 1915, a city that five years later installed its first electric traffic signal, which happened to include the very first amber traffic light , at the corner of Michigan and Woodward Aves .(1)What are the earliest traffic signals designed for...
In 1915 the yellow stop-sign craze began in Detroit, a city that five years later installed its first electric traffic signal, which happened to include the very first yellow traffic light. But what of those mysterious yellow stop signs?As materials and technologies evolved, the ability to ...
解析 A。解析:交通信号灯是由红、黄、绿三种颜色组成的,英文是traffic light。选项B“stop sign”是停车标志,通常是八角形红色标志。选项C“crosswalk sign”是人行横道标志,和三色标志不符。选项D“speed limit sign”是限速标志,不是三色的。反馈 收藏 ...
because at night it was all but impossible to see a red stop sign in a poorly lit area.The yellow stop-sign craze began in Detroit in 1915,a city that five years later installed its first electric traffic signal,which happened to include the very first amber traffic light,at the corner ...
because at night it was all but impossible to see a red stop sign in a poorly lit area.The yellow stop-sign craze began in Detroit in 1915,a city that five years later installed its first electric traffic signal,which happened to include the very first amber traffic light,at the corner ...
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