La profundidad del peldaño (huella) se mide desde _____.
a. la cara de una
contrahuella hasta el lado
de la siguiente
b. la cara de una
contrahuella hasta la cara
de la siguiente
c. la parte superior de un
peldaño hasta la parte
inferior del siguiente
d. el contrapiso hasta la
parte superior del
peldaño
Answer: B
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