You are the network administrator for All servers run Windows Server 2003. You are creating a backup schedule for the main file server. You need to create a schedule so that backup jobs are completed in the shortest amount of time possible. What should you do?()
A. Schedule a normal backup every Sunday. Schedule incremental backups every Monday through Saturday.
B. Schedule a normal backup every Sunday. Schedule differential backups every Monday through Saturday.
C. Schedule a copy backup every day.
D. Schedule a normal backup every day.
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要检修盛丁烯-1产品罐时,当物料倒空、置换后,系统中的可燃物小于()。
A. 0.2%
B. 0.5%
C. 0.6%
D. 0.8%
新教、犹太教、伊斯兰教在哪一点上是相同的?()
A. 都与天主教徒发生过宗教战争
B. 都以《旧约》为主要经文
C. 都反对偶像崇拜
在三视图中既能标注物体长又能标注物体宽的是()。
A. 主视图
B. 俯视图
C. 左视图
D. 右视图
对不同质谱仪性能的了解,有助于质谱技术的合理应用。下列叙述正确的是()
A. EI主要适用于易挥发有机样品的电离
B. CI是一种软电离方式
C. FAB适合于分析大分子量、难气化、热稳定性差的样品
D. ESI可以测量分子量在300000Da以上的蛋白质
E. APCI主要用来分析中等极性的化合物