Puas tau tso tseg cov cim siv daj?
Puas tau tso tseg cov cim siv daj?

Video: Puas tau tso tseg cov cim siv daj?

Video: Puas tau tso tseg cov cim siv daj?
Video: thov daj thov deev ib zaug puas tau kaub yaaj nkauj tawm tshiab 2024, Kaum ib hlis
Anonim

Yog - qhov tseeb, daj yog tus qauv xim rau Nres cov cim rau ze li 30 xyoo. Thawj STOP kos npe tau tshwm sim xyoo 1915 hauv Detroit, Michigan. Muaj ntau yam xim siv rau Nres cov cim txog thaum xyoo 1920s lig, thaum cov xim keeb kwm yav dhau tau ua qauv rau daj rau siab tshaj plaws hnub thiab hmo ntuj pom.

Hais txog qhov no, thaum twg cov paib nres ua liab?

1954

yog vim li cas cov paib qhia kev daj? Daj : Daj qhia WARNING. Yellow traffic signs sawv ntsug kom qeeb qeeb, tsav tsheb ceev faj, lossis ceeb toom dav dav. Tej zaum nws yuav yog daj , los yog daj -ntsuab nrog cov lus dub lossis cov cim. Daim paib no ceeb toom koj txog kev phom sij lossis kev phom sij uas yuav tshwm sim ntawm lossis ze ntawm txoj kev.

Hauv qhov no, thaum twg cov txiaj ntsig hloov pauv los ntawm daj mus rau liab?

1971, Thawj lub cim nres zoo li cas?

Cov thawj qhov cim tseg tau tshaj tawm hauv Michigan thiab Nebraska xyoo 1915, hais tias Brown University Keeb Kwm, lawv yog square- zoo li tus , ntsuas 2 ko taw los ntawm 2 ko taw thiab cim cov tsiaj ntawv dub rau ntawm keeb kwm dawb, raws li Jalopnik.

Pom zoo: