What does the author say about straight horizontal bars painted across roads?A.They are f

外语类 公共英语 已帮助 人

What does the author say about straight, horizontal bars painted across roads?

A.They are falling out of use in the United States.

B.They tend to be ignored by drivers in a short period of time.

C.They are applicable only on broad roads.

D.They cannot be applied successfully to traffic circles.

热搜:the galapagos islands

答案解析

难度★★☆ 搜索
  • 正确答案:B
    解析:文章讲到“Some studies suggest that straight, horizontal bars painted across roads can initially cut the average speed of drivers in half”,也就是说横的直线只能短时间内有效。因此只能选择B。