题目内容

铸铁焊补中可能出现两种不同性质的裂纹，即（）裂纹和（）裂纹。

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Your database is in ARCHIVELOG mode. You have two online redo log groups，each of which contains one redo member. When you attempt to start the database， you receive the following errors：（）

ALTER DATABASE DROP LOGFILE GROUP 1
B. ALTER DATABASE CLEAR LOGFILE GROUP 1
C. ALTER DATABASE CLEAR UNARCHIVED LOGFILE GROUP 1
D. ALTER DATABASE DROP LOGFILE MEMBER ’D：\REDO01.LOG&rsquo

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铸铁焊补中可能出现两种不同性质的裂纹，即（）裂纹和（）裂纹。

Your database is in ARCHIVELOG mode. You have two online redo log groups，each of which contains one redo member. When you attempt to start the database， you receive the following errors：（）

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