单选题Which of the following commands will fail？（）A report schemaB report need backupC report need backup days 3D report userE report obsolete
单选题
Which of the following commands will fail？（）
A
report schema
B
report need backup
C
report need backup days 3
D
report user
E
report obsolete
参考解析
解析：
暂无解析
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