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问题 单项选择题

采取吸声、隔热来控制噪声是控制生产性噪声的( )措施。

A．消除或降低噪声源

B．消除或减少噪声的传播

C．加强个人防护

D．加强健康监护

答案

参考答案：B

解析：噪声的控制措施之一是消除或减少噪声、振动的传播，如吸声、隔声、隔振、阻尼。

单项选择题

《国家电网公司应用软件通用安全要求》中规定，应用软件的开发应该在专用的（）中进行。

A.开发环境

B.测试环境

C.模拟环境

D.运行环境
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单项选择题

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.

（73）（）

A.system

B.infrastructure

C.hardware

D.link
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