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基本分类等级有

现代竞争是()之间的竞争。

A. 供应链
B. 企业
C. 商业
D. 产品

小型露天采石场必须依法参加工伤社会保险,为从业人员交纳工伤保险费、养老保险,社会公积金等项目。

A. 正确
B. 错误

You are managing an ASM instance. You previously issued the following statements: ALTER DISKGROUP dg1 DROP DISK disk2; ALTER DISKGROUP dg1 DROP DISK disk3; ALTER DISKGROUP dg1 DROP DISK disk5; You want to cancel the disk drops that are pending for the DG1 disk group. Which statement should you issue?()

ALTER DISKGROUP dg1 UNDROP disk2,disk3,disk5
B. ALTER DISKGROUP dg1 UNDROP
C. ALTER DISKGROUP dg1 UNDROP DISKS
D. You cannot cancel the pending disk dro

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