En los cimientos de concreto típicos, la forma para _____ se coloca y se rellena al final.
a. los pozos interiores
b. las zapatas de la estruc-
tura
c. la losa de los cimientos
d. los muros de los cimien-
tos
Answer: C
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What will be an ideal response?
An HPR valve (head pressure regulating valve) maintains head pressure by _______.
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What will be an ideal response?