题目内容

夹具尺寸公差一般取相应尺寸公差的()。

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()机关根据执法需要,可以查阅公路收费监控系统信息。

A. 交通
B. 公安
C. 交通、公安
D. 城管

You want to take a complete database backup using RMAN. The backup should consist onlythe used blocks from your database. Which two statements are true about this backup operation?()

A. Backup compression should be enabled
B. Parallelism for the channel should be set to 2
C. All the files must be backed up as backup sets
D. The backup may be stored either on disk or on media with media manager

滚动轴承装配的一般要求是什么?

下列()为导热热阻。

A. λ/(δ
B. δ/(λ
C. l/(α
D. l/(K

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