单选题
82.With the north side of Qomolangma covered by ________ last year, netizens can enjoy livestreaming videos from the world's highest mountain. （2021年考题）
问题1选项
A.Beidou-2
B.6G networks
C.5G networks
D.hacker
A.Beidou-2
B.6G networks
C.5G networks
D.hacker
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