Biblioteca
Estuda os sinais, revê a matéria e consulta resumos quando precisares.
#ydex4lpz
The vertical sign with a blue background indicates to me that:

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.
AI am going to enter a one-way street.
BI cannot go straight ahead.
CI am obliged to go straight ahead.