题目:下面哪个不是中国四大骨干网之一?
选项A:ChinaNET
选项B:CSTNET
选项C:ChinaGSN
选项D:CCTV
正确答案:选项D
选项D:CCTV、
http://m.gdfshaiyu.com/zhuanti/133656.html
题目:下面哪个不是中国四大骨干网之一?
选项A:ChinaNET
选项B:CSTNET
选项C:ChinaGSN
选项D:CCTV
正确答案:选项D
选项D:CCTV、
http://m.gdfshaiyu.com/zhuanti/133656.html