What does the author say about straight, horizontal bars painted across roads?
A、TheyarefallingoutofuseintheUnitedStates.;
B、Theytendtobeignoredbydriversinashortperiodoftime.;
C、Theyareapplicableonlyonbroadroads.;
D、Theycannotbeappliedsuccessfullytotrafficcircles.
发布时间:2024-09-25 13:51:28