高级育婴师只有()这个前提和基础,才能做好指导、培训和评估工作。
A. 掌握育婴员、育婴师的工作内容和技能要求
B. 掌握月嫂、育婴员的工作内容和技能要求
C. 掌握婴儿家长的学习经历
D. 掌握保姆、月嫂的工作内容和技能要求
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卸扣使用应注意() ①不许超负荷作业; ②不可横向受力; ③带螺纹的横栓不得碰损; ④卸扣不用时横销要上油以保持润滑。
A. ①②③④;
B. ①③④;
C. ②③④;
D. ①②③。
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
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。