A traffic signal for camels began operation Sunday at the scenic Mingsha Mountain and Crescent Spring in Dunhuang City, northwest China's Gansu Province. It is the first traffic light in the world designed especially for camels. When the traffic signal turns green, camels can cross the road, ...
A traffic signal for camels began operation Sunday at the scenic Mingsha Mountain and Crescent Spring in Dunhuang City, northwest China's Gansu Province. It is the first traffic light in the world designed especially for camels. When the traffic signal turns green, camels can cross the road, ...
The world's first traffic light was not used for the purpose that is used for today. The first traffic light 1 was used for pedestrians(行人). Now we have the crosswalk light to 2 the signals for pedestrians to cross. The very first traffic light was 3 in London, England on 9th Dece...
This traffic light was used in case of emergencies (紧急事件).可知,他发明的信号灯的不同之处在于它有一个蜂鸣器,可以告诉人们紧急情况,所以选D。 4. 细节题。C是正确的。 A. It was actually a lantern that had the colors red and green on different sides.第一个交通信号灯是红色和绿色,所以错误...
由第二段第三句The meaning of the colors on the lantern was very similar totoday's traffic light.”结合实际可知是“红灯停,绿灯行”。B项“红灯意思是走”表述错误。由第三段第二句“On2nd January, 1869, just less than one month after the lightwas installed, the lantern exploded(爆炸)."可知...
题目The first traffic lights in the United States were installed because of an increase in traveller on the road in the 1920s.Worried about accidents,towns and cities installed traffic towers to help the flow of cars.Officers manned the towers,using whistles and red,green and ...
根据文章第一个小标题第一段第一句 20 October 1923 — People in the USA first use a traffic light. 可知,1923年10月20日——美国的人们第一次使用红绿灯。 故正确答案为C。 2. 细节理解题。 根据文章第一个小标题第一段第三句 It has only two parts(部分). 可知,最早的红绿灯有2部分。 故正确答...
20 October 1923--People in the US first use a traffic light.I is a little different form today's traffic light.I has only two parts.One says "GO" and the other says "STOP".When people see "GO",they can cross the road. Football...
51. In 1920, the world's (world) first three-color traffic light was put to use. 相关知识点: 试题来源: 解析 答案见上51. world`s【 解析】句意:1920 年,世界上第一个三色 交通灯投入使用。 空处修饰的是其后的名词 "traffic light",应用所有格作定语,world的所有格 应是 world's.故填 world...
相关知识点: 试题来源: 解析 答案见上本题主要考查名词。句意:1920年,……第一个三色红绿灯投入使用。根据语法及提示词可知,此处缺少名词所有格修饰名词短语first three-color traffic light。故正确答案为 world's。 反馈 收藏