A.高;窄; B.高;寬; C.低;窄; D.低;寬
A.橫向間距; B.車輛前距; C.車速; D.輪距;
A.工作時(shí)間; B.白天睡眠時(shí)間; C.睡眠時(shí)間; D.休閑時(shí)間