Virtualization is an approach to IT that pools and shares（71）so that utilization is optimized and supplies automatically meet demand．Traditional IT environments are often silos, where both technology and human（72）。 are aligned around an application or business function．With a virtualized （73），people, processes, and technology are focused on meeting service levels, （74） is allocated dynamically, resources are optimized, and the entire infrastructure is simplified and flexible．We offer a broad spectrum of virtualization（75）that allows customers to choose the most appropriate path and optimization focus for their IT infrastructure resources．

72（）

A．profits

B．costs

C．resources

D．powers

《商业银行理财产品销售管理办法》规定，理财产品风险评级结果应当以风险等级体现，由低到高至少包括（）等级，并可根据实际情况进一步细分。

A.3个

B.4个

C.5个

D.6个