Cuando se disponen viguetas de techo para un techo a cuatro aguas, se debe _____.
a. comenzar en las
esquinas y avanzar hacia
el centro
b. comenzar en el medio y
avanzar hacia las
esquinas
c. comenzar en una esquina
y avanzar hacia la otra
esquina
d. Cualquiera de las
anteriores.
Answer: A
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