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Classificação, constituintes, inspecções, pesos e dimensões, protecção de ambiente, equipamentos de segurança, acidenteUnder review

Retro-reflective panels are used to signal cars or vehicle combinations:

Question under review

This question hasn't been validated yet, so it doesn't appear in exams and the correct answer isn't shown for now.

AWith a gross weight exceeding 3.5 tons.

BWith an unladen weight exceeding 3.5 tons.