公路路线是指公路沿着（）方向的行车道中心线。
A、长度
B、宽度
参考答案：A
SAB型防滑器主机显示73表示多轴出现故障。
—（）— He teaches physics at a school.
A.What does your father want to do?
B.Who is your father?
C.How is you rfather?
D.What is your father?
