Paraffin is left on the body for how many minutes?

Which type of concrete is placed in forms and cured away from the job site?

A. Precast concrete B. Masonry concrete C. Cast-in-place concrete D. Slab and beam concrete

An example of non-verbal communication is:

A) writing the message on paper. B) speaking clearly. C) a smile or a touch. D) none of the above.