Answer:
Combination of one or more columns used to identify particular rows in a relation is a key
I don't think that is a query...
Based on the scenario above about the leading-trailing system Both technician A and B are incorrect.
<h3>How many brake shoes function?</h3>
There are known to be two shoes function that are said to be working a way where both become either the trailing shoe or leading shoe based on whether the vehicle is moving forward or backward.
Therefore we can say that, Based on the scenario above about the leading-trailing system Both technician A and B are incorrect.
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Answer:
A and C are the only <u>legal</u> but unethical options
16. Branch or tree cutter
17.paint tape
18. Knife
19. Pots
20. Waterer
