One of the principles of communication is that it is repeatable.

true
false

It is true that one of the principles of communication is that it is repeatable. You can communicate with other people as much as you want to, you can even talk about the same thing over and over again. This means that this type of communication can be repeated, which makes this sentence true.

Answerbiological perspective

Some connecting rods have to lubricate the cylinder wall or piston pin. the answer is letter d. graphite coating can be a major  additive to many  coating  systems and things such as connecting rods.  it functions as a refractory, lubricant, thermal conductor, and electrical conductor for a machine or thing to enhance its work.