观察系统当前进程的运行情况的命令是( ):A、freeB、dmesgC、topD、last
答案:http://hovertree.com/tiku/bjag/foxg5n0q.htm
Linux系统通过( )命令给其他用户发消息?A.lessB.mesg yC.writeD.echo to
答案:http://hovertree.com/tiku/bjag/pcdy3l1o.htm
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