ThelocalhostonasmallnetworkisnamedEarth.ThereisalsoaremotehostonthenetworknamedSaturn.Thesystemadministratorofthenetworkisinthe/u/tmpdirectoryofEarth，andstartsanftptoSaturnasroot.Whichofthefollowingsequenceofcommandsissuedfromthelocalhost，Earth，will：（）。1.Changetothe/u/newdirectoryonSaturn.2.Checktoseeifthereisana.outfileonremotehostSaturn.3.Transfera.outfromEarthtoSaturn.
A.cd/u/newlsa.outputa.out
B.cd/u/newlsa.outgeta.out
C.lcd/u/newlsa.outputa.out
D.lcd/u/newlsa.outgeta.out
正确答案：参考A
