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1·This paper introduces the principles and methods of implementation of whole-network intelligent business of tandem office mode, and probes into the network security and disaster recovery technology.

介绍了汇接局模式全网智能化实现的原理和方法，并探讨了网络安全性以及容灾技术。

2·He is working in tandem with officials of the Serious Fraud Office.

他正配合欺诈重案办公室的官员工作。