[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
正确答案 :B
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[单选题]为了追查刑事犯罪的需要,除( )之外的机构可以依照法律规定的程序对用户通信内容进行检查。
正确答案 :B
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