N( u9 i Q; I换线的正解是回头,打灯,回头,换线。) X6 I6 Z: k% G; v9 v
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100 km/h is the maximum speed limit for a primary highway that is located outside an urban area& \$ m( N" y m* k3 Y- u4 F: V3 d
80 km/h is the maximum speed limit for other non-primary highways outside an urban area ! t* U2 u" A4 @, N50 km/h is the maximum speed limit for a highway that is located within an urban area