Biblioteca
Estuda os sinais, revê a matéria e consulta resumos quando precisares.
#6df13793
The warning sign indicates:

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.
ACurve to the right.
BCurve to the right with a reverse curve.
CCurve to the left and reverse curve.