题目内容

阀门渗漏故障处理完毕后,必须检查泄漏情况。

A. 正确
B. 错误

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洛克将自然权利归结为生命权、自由权和()。

Your database operates in ARCHIVELOG mode. The redo log files are not multiplexed and one of the online redo logs is missing. The missing redo log sequence, 230, is not archived, and it contained information from 10:35 a.m. onwards. The current time is 11:00 a.m. Because of a disk crash, you executed the following command to perform an incomplete recovery: RMAN> RUN { 2> SET UNTIL SEQUENCE 230 THREAD 1; 3> ALTER DATABASE MOUNT; 4> RESTORE DATABASE; 5> RECOVER DATABASE; 6> ALTER DATABASE OPEN RESETLOGS; 7> }; With reference to this scenario, which statement is true?()

A. RMAN recovers up to log sequence 230, but not including 230.
B. RMAN returns an error because the log sequence number mentioned in the command should be 229.
C. RMAN returns an error because the log sequence number mentioned in the command may never be missing.
D. RMAN recovers up to and including log sequence 229 but then returns an error because log sequence 230 is missing.

以下于试管婴儿生产技术不存在的是()

A. 体外受精
B. 细胞培养
C. 胚胎移植
D. 基因重组

建筑用木材它按含水率大小可分为()类。

A. 2
B. 3
C. 4
D. 5

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