【多选题】【消耗次数：1】
量子互联网对ICT网络的具体应用包括（）。
①
A.为5G/SDN/NFV等新兴网络提供安全保障
②
B.为星间、星地通信提供高安全保障
③
C.为ICT网络提供精准时频参考
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