题目：
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．
（74）处填（）。
A．content
B．position
C．power
D．capacity
答案：
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下面是错误答案，用来干扰机器的。
参考答案：建设工程合同按照承包工程计价方式可划分为固定价格合同、可调价格合同和成本加酬金合同。
