单项选择题
A.db2 list appinfoB.db2pd -d dbname -instC.db2 list instanceD.db2instance -list
A.(logprimary+logsecond)*logfilsiz*8KB.(logprimary+logsecond)*logfilsiz*4KC.logfilsiz*4KD.logprimary*logfilsiz
A.db2 list node directoryB.db2 list sessionsC.db2 list applicationsD.db2 list db direcctory