为保证竣工交付使用而进行必要的生产准备所发生的费用是()。
A. 生产准备费
B. 研究试验费
C. 联合试运转费
D. 办公和生活家具购置费
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You experience a loss of the disk on which the USER_DATA tablespace data files are stored. You attempt to recover the data files but discover that the archived redo log file with sequence number 45, which is needed to perform complete recovery, is invalid. You then begin incomplete recovery-You receive this prompt: ORA-00279:change 309012...03/09/01 11:33:56 needed for thread ORA-00289: suggestion : /disk1/archive/arch_45.rdo ORA-00280: change 309012 for thread 1 is in sequence #45 Specify log: {=suggested filename AUTO CANCEL} What is the correct response?()
A. Enter the keyword AUT
B. Enter the keyword CANCE
C. Press the Enter or Return key.
D. Provide the filename ’/disk1/archive/arcg_46.rdo&rsquo
世界饭店业的发展有古代客栈时期,大饭店时期,(),现代饭店时期。
腰3~4椎间盘突出症的临床表现可有()腰4~5椎间盘突出症的临床表现可有()
A. 下肢放射性疼痛
B. 小腿外侧感觉障碍,阻趾背伸力弱
C. 二者均有
D. 二者均无
铝及其合金工件氧化处理后的膜层()。
A. 导电性能增加
B. 不能承受较大的压力和变形
C. 耐蚀能力降低
D. 耐磨性增加