What are the three basic types of pipe materials that are used for sprinkler systems?

Cryosurgery is the use of an extremely ________ instrument or substance to destroy tissue

A. heavy B. bright C. hot D. cold

During the advanced stages of cystic fibrosis, the anatomic alterations cause the patient to have:

a. a primarily restrictive lung disease. b. a primarily obstructive lung disease. c. equal parts restrictive and obstructive lung disease. d. normal airways with emphysema.