548.A red triangular "Danger" warning sign is placed on a road. What is the purpose of this sign?
(A) Thesection ahead is an accident-prone area; drivers are reminded to slow down.
(B) There is a hazardousroad condition ahead for which no dedicated warning sign exists; drivers are reminded to proceed withcaution.
(C) The road ahead is about to be closed; drivers are reminded to prepare for a detour.
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統計: 尚無統計資料
統計: 尚無統計資料