IPv6 is currently in growing deployment around the world,()

【名词&注释】

电信服务质量(telecom service quality)

[单选题]IPv6 is currently in growing deployment around the world,() Internet address registries (RIRs) began to urge all resource managers to plan rapid adoption and conversion.

A. from
B. since
C. for
D. over

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举一反三：

[单选题]电信服务质量是指（）

A. 服务性能质量
B. 服务性能质量和网络性能质量
C. 业务性能质量和网路性能质量
D. 服务质量和业务质量

[单选题]LTE/EPC网络中，手机完成业务请求后，状态变为()

A. EMM-Registered
B. ECMConnected
C. ECMIDLE
D. EMM-Deregisted

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