单项选择题
Given the following output： prompt> myapp [1]+ Stopped myapp prompt> Which of the following commands will resume executing the stopped process while allowing the user to continue to type commands at the command prompt？（）
A. bg myapp B. continue myapp C. exec myapp D. fg myapp E. myapp &
单项选择题 Toallowaregularuseraccounttomountandunmountafilesystem（forinstance，acdromorfloppy），whichoptionneedtobeaddedtothecorrespondinglinein/etc/fstab？（）
填空题 WhichprogramfindsonlyfilesthatareinyourPATH？（）
多项选择题 WhatdoestheFilesystemHierarchyStandardenable？（）
