Which of the following is not true regarding ethics in research? A. Participants have privacy protection regarding their behavior
B. Participation must be completely voluntary
C. Informed consent must be granted before an experiment takes place
D. Participants may be harmed in the couse of an experiment

23. public and private investment in infrastructure include all of the following except a) worker knowledge and skill development b) telecommunication systems, internet provider systems, and power distribution systems c) highways, transit systems, airports, harbors, and educational facilities d) fire departments, police departments, and public safety systems e) water systems, wastewater treatment systems, and navigational systems

The career field ensures that facilities and equipment run smoothly.

Afour-cylinder engine is described as having a port-type efi fuel system. in most cases, how many injectors would you expect the engine to have? a. 8 b. 0 c. 1 d. 4