Technician A says that refrigerant leaks are most common where components join together. Technician B says that many manufacturers put leak-tracing dye in the refrigerant systems of new vehicles. Which technician is correct? A. Both Technicians A and B B. Technician A C. Technician B D. Neither Technicians A nor B

2.)how does a graphical user interface (gui) on a touchscreen interface differ from a gui on a desktop or laptop? a.)a finger or stylus is used instead of a pointer. b.) a magic wand is used instead of a pointer. c.)users speak commands instead of using a pointer. d.)users visualize commands instead of using a pointer.

Explain briefly why you cannot expect to find a previous version of every file with which you work.

Eye injuries usually occur as a result of all of the following things, except: a) proper machine operation b) battery explosion c) falling or flying debris d) electric welding arc