Which characteristic of modern construction produces large quantities of toxic, combustible gases during a fire?

Generic drugs are:

a. proprietary. b. patented by the original manufacturer. c. nonproprietary. d. not yet approved by the FDA.

General principles for backing up an ambulance include:

A) using one spotter for each side of the ambulance. B) keeping the window up to avoid any distractions. C) not using audible warning devices so you can hear. D) stopping the vehicle if you lose sight of your spotter.