Human traffic lights ensure travel

中國日?qǐng)?bào)網(wǎng) 2015-12-24 16:49

Two men took on the job of human traffic signals at an intersection in Shijiazhuang, Hebei province, when the electric traffic signals broke down and several traffic accidents occurred over the past month. They set up temporary signals using large plastic boards with the words "stop" and "go", turning in one direction or another every 30 seconds to aid drivers. The city was evaluating the problem with the lights and sent police officers to direct rush-hour traffic.

How often did the human traffic lights change direction?

A. Every 20 seconds

B. Every 30 seconds

C. Every 40 seconds

（中國日?qǐng)?bào)網(wǎng)英語點(diǎn)津丁一編輯）

上一篇 : Hitting the road in a quilt
下一篇 :

中國日?qǐng)?bào)網(wǎng)英語點(diǎn)津版權(quán)說明：凡注明來源為“中國日?qǐng)?bào)網(wǎng)英語點(diǎn)津：XXX（署名）”的原創(chuàng)作品，除與中國日?qǐng)?bào)網(wǎng)簽署英語點(diǎn)津內(nèi)容授權(quán)協(xié)議的網(wǎng)站外，其他任何網(wǎng)站或單位未經(jīng)允許不得非法盜鏈、轉(zhuǎn)載和使用，違者必究。如需使用，請(qǐng)與010-84883561聯(lián)系；凡本網(wǎng)注明“來源：XXX（非英語點(diǎn)津）”的作品，均轉(zhuǎn)載自其它媒體，目的在于傳播更多信息，其他媒體如需轉(zhuǎn)載，請(qǐng)與稿件來源方聯(lián)系，如產(chǎn)生任何問題與本網(wǎng)無關(guān)；本網(wǎng)所發(fā)布的歌曲、電影片段，版權(quán)歸原作者所有，僅供學(xué)習(xí)與研究，如果侵權(quán)，請(qǐng)?zhí)峁┌鏅?quán)證明，以便盡快刪除。