How many licenses do you need to operate three call to machine 3.1?
A. 1/52 license
B. 1/7 license
C. 1 license
D. 1/3 license
Answer:D
How many licenses do you need to operate three call to machine 3.1?
A. 1/52 license B. 1/7 license C. 1 license D. 1/3 license
Explanation: Explanation