【名词&注释】
统一管理(unified management)、多普勒效应(doppler effect)、存储系统(storage system)、运动会(sports meeting)、用户数据(user data)
[单选题]Deploying enhanced broadband services over existing network infrastructure ( )in increase of the network complexity and therefore,extra expenses on network management and maintenanc
A. [1分]
B. results
C. resulted
D. resulting
E. result