下面关于Scale up和Scale out的说法，不正确的是: A: Scale up是指通过向节点内添加内存处理器硬盘等设备，提升系统性能。 B: Scale out是指通过增加节点数量提升系统性能。 C: Scale out不会增加控制器或基础设施的开销。 D: 大数据系统中一般通过Scale out的方式进行扩展，原因是Scale out更易扩展。

According to the Pain Rating Scale, the patient is in _____ pain if he rates his pain as 4 out of 10. A: little B: mild C: great

谈到系统的可伸缩性，Scale Up和Scale Out是两种典型的扩展模式。Scale Up使用横向扩展模式， 规模扩大时计算、存储和网络等各种资源均衡扩展，更利于部署大规模的云计算环境。 A.正确 B.错误

It is a valuable ( scale / skill ). A: scale B: skill

中国大学MOOC: Chinese musical scale is a ____scale

Arithmetic operations are appropriate for A: only the ratio scale B: only the interval scale C: the nominal scale D: None of the above answers is correct.

scale

Identify the scale used for the following variable:Educational level reported as middle school, high school , undergraduate and higher _________ A: Nominal scale B: Ordinal scale

Identify the scale used for each of the following variables:Educational level reported as middle school, high school , undergraduate and higher _________ A: Nominal scale B: Ordinal scale

‏Chinese musical scale is a ____scale‏‏‏ A: heptatonic B: monophonic C: pentatonic D: harmony