Exterior doors are often insulated with polystyrene because of its high R-value rating

Indicate whether the statement is true or false


TRUE

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In ____________________ construction, the metal rods are stretched and then the concrete is poured.

Fill in the blank(s) with the appropriate word(s).

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?Technician A says piston seals are designed to seal against high pressures. Technician B says the seal is positioned so that the lip faces the source of the pressurized fluid Who is correct?

A. ?A only B. ?B only C. ?Both A and B D. ?Neither A nor B

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Ratios are used to make comparisons between two things.

Answer the following statement true (T) or false (F)

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Infectious agents that must reproduce inside the living cells of the host would be

classified as: A. protozoal B. bacterial C. viral

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