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

With a virtualized（）

A．system

B．infrastructure

C．hardware

D．link

期货公司在期货市场中的作用主要有( )。

A．根据客户的需要设计期货合约，保持期货市场的活力
B．期货公司担保客户的交易履约，从而降低了客户的交易风险
C．严密的风险控制制度使期货公司可以较为有效地控制客户的交易风险
D．监管期货交易所指定的交割仓库，保证了期货市场功能的发挥