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computer science disk operating system dos
1. While working with MS-DOS, which command is used to combine FILE1 plus FILE2 into new file named FILE3?
(A): COPY FILE1+FILE2 FILE3
(B): COPY FILE1+FILE2+FILE3
(C): COPY FILE2 FILE1+FILE3
(D): COPY FILE3 FILE1+FILE2
(E): None of the above
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