?? l21.1a
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#printRemember all the basic commands: 'd', 'a', 'w' and 'q'.Make a file named 'test' that contains the following lines, exactlyas presented below. Then type "ready".#create Refmainenew hampshirevermontmassachusettsrhode islandconnecticut#print Ref#user#cmp Ref test#log#next21.1b 5?? 快捷鍵說明
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