A.Software can have multiple copies. Software can have multiple copies
B.Software is a kind of concrete physical entity
C.The faults in a software system come from wearing out
D.Software is something mysterious mastered by some geniuses
A.computer+software
B.computer*software
C.computer:software
D.computer-software
B、Every software system has its life cycle
C、Software life cycle is the period of time that a software product is in service
D、Software life cycle is the cycling through phases of specification, design, implementation, and testing
A.Software is transplantable
B.Software is a kind of concrete physical entity
C.The faults in a software system come from wearing out
D.Software is something mysterious mastered by some geniuses
A.public
B.friends
C.government
D.family
A.[root@master~]#tarzxvf/opt/software/apache-flume-1.6.0-bin.tar.gz/usr/local/src
B.[hadoop@master~]#tarzxvf/opt/software/apache-flume-1.6.0-bin.tar.gz-C/usr/local/src
C.[root@master~]#tarzxvf/opt/software/apache-flume-1.6.0-bin.tar.gz-C/usr/local/src
D.[root@master~]#unzip/opt/software/apache-flume-1.6.0-bin.tar.gz-C/usr/local/src
A.Software
B.a program
C.a fhle
D.the data
A、cover the faults in the software system
B、prove the software is right
C、test the code only
D、find as many faults as possible in the software system