The main operating unit of the Roman world was the

a. Senate.
b. extended family.
c. polis.
d. phalanx.


b. extended family.

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A direct-hung suspension system is used for the most commonly used suspended ceilings. What does such a system consist of?

What will be an ideal response?

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The lines that run horizontally from the right side to the left side of the diagram are which of the following?

A) Constant quality lines B) Pressure lines C) Saturation curves D) Curved lines

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Can energy costs be affected by TAB of a system?

What will be an ideal response?

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The waste passageways of reverse-trap waters closets are _____

a. 1-1/2 inches in diameter b. 2 inches in diameter c. 2-1/2 inches in diameter d. 3 inches in diameter

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