路标测试

The correct choice is Slow down for a sharp rise in the road. It matches the sign, warning, regulation, or roadway instruction described in the question, and drivers must adjust speed or lane position before reaching the condition ahead. / 正确答案是：为前方路面突起减速。它与题目所描述的标志、警告、管制或道路指示相符，驾驶员应在到达前提前调整车速或行驶位置。

The correct choice is 4 TRACKS. It matches the sign, warning, regulation, or roadway instruction described in the question, and drivers must adjust speed or lane position before reaching the condition ahead. / 正确答案是：4 TRACKS。它与题目所描述的标志、警告、管制或道路指示相符，驾驶员应在到达前提前调整车速或行驶位置。

The correct choice is Divided highway ends. It matches the sign, warning, regulation, or roadway instruction described in the question, and drivers must adjust speed or lane position before reaching the condition ahead. / 正确答案是：前方公路分隔带结束（中央隔离终止）。它与题目所描述的标志、警告、管制或道路指示相符，驾驶员应在到达前提前调整车速或行驶位置。

The correct choice is Watch for an upcoming railroad crossing. It matches the sign, warning, regulation, or roadway instruction described in the question, and drivers must adjust speed or lane position before reaching the condition ahead. / 正确答案是：注意前方有铁路道口。它与题目所描述的标志、警告、管制或道路指示相符，驾驶员应在到达前提前调整车速或行驶位置。

The correct choice is NO TURN ON RED. It matches the sign, warning, regulation, or roadway instruction described in the question, and drivers must adjust speed or lane position before reaching the condition ahead. / 正确答案是：NO TURN ON RED。它与题目所描述的标志、警告、管制或道路指示相符，驾驶员应在到达前提前调整车速或行驶位置。

The correct choice is Go straight only; no left or right turns. It matches the sign, warning, regulation, or roadway instruction described in the question, and drivers must adjust speed or lane position before reaching the condition ahead. / 正确答案是：直行，不得左转或右转。它与题目所描述的标志、警告、管制或道路指示相符，驾驶员应在到达前提前调整车速或行驶位置。

This white rectangular regulatory sign is common on two-lane mountain / rural roads and requires slow vehicles to use the turnout to let others pass . / 白底黑字矩形为 管制标志 ，常见于山路 / 双车道乡村道路，提示 慢速车辆必须在避车道让行 。

This yellow diamond warning sign is often used in work zones or congestion areas to alert drivers to possible slow or stopped traffic; reduce speed, increase following distance, and be ready to stop. / “BE PREPARED TO STOP” 为黄色菱形 警告标志 ，常见于施工区或拥堵路段，提醒可能出现 减速 / 排队 / 临停 情况，应提前减速、增大跟车距离并随时准备停车。

The correct choice is Work zone ahead. It matches the sign, warning, regulation, or roadway instruction described in the question, and drivers must adjust speed or lane position before reaching the condition ahead. / 正确答案是：Work zone ahead。它与题目所描述的标志、警告、管制或道路指示相符，驾驶员应在到达前提前调整车速或行驶位置。

The correct choice is NO TURNS. It matches the sign, warning, regulation, or roadway instruction described in the question, and drivers must adjust speed or lane position before reaching the condition ahead. / 正确答案是：NO TURNS。它与题目所描述的标志、警告、管制或道路指示相符，驾驶员应在到达前提前调整车速或行驶位置。

The correct choice is Slow down and proceed as directed by the flagger. It matches the sign, warning, regulation, or roadway instruction described in the question, and drivers must adjust speed or lane position before reaching the condition ahead. / 正确答案是：按指挥员示意减速通过。它与题目所描述的标志、警告、管制或道路指示相符，驾驶员应在到达前提前调整车速或行驶位置。

The correct choice is Left Turn. It matches the sign, warning, regulation, or roadway instruction described in the question, and drivers must adjust speed or lane position before reaching the condition ahead. / 正确答案是：Left Turn。它与题目所描述的标志、警告、管制或道路指示相符，驾驶员应在到达前提前调整车速或行驶位置。