試題詳解

98. On narrow sloping roads, vehicles traveling downhill must yield to vehicles traveling uphill. If the vehicle traveling uphill is at the foot of the hill and the vehicle traveling down hill is already halfway down, then the vehicle traveling uphill must yield to the vehicle traveling downhill. On mountainous roads, vehicles traveling in the lane closest to the mountain must yield to vehicles in all other lanes. Violators will be penalized.
(A)O
(B)X