单项选择题
A./etc/hosts.confB./etc/hostsC./etc/hostD./etc/hostname
A.MapReduxce藏了并行计算的细节,方便使用B.MapReduce是种计算框架C.MapRedbcc来源于oogke的学术论交D.MapReduxe程序只能用jna语言编写
A.head -lB.wc -nC.wc -lD.head -n
A./usr/local/src/hadoop/confB./usr/local/src/hadoopC./usr/local/src/hadoop/etc/hadoopD./usr/local/src/hadoop/share/hadoop
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