● （71） controls the operation of the computer and performs it′s dataprocessing functions.

When under maneouvring conditions with the machinery being manually operated the control u

The domestic fresh water pump starters are controlled by pressure switches which operate w

●The two goals of an operation system are（71）and efficiency. （71）A.convenience B.quick C.o

● An embedded operating system is the（71） program that manages all the other programs in a

Why did the French launch the military operation？A．To control Kidal airport.B．To protect t

●Information （71) involves all the operations of an office.（71)A. record B. processing C.