单项选择题
A.3000 B.6000 C.5000 D.4000
A.DLD SOFTWARE B.RBK SOFTWARE C.SPL SOFTWARE D.ACT SOFTWARE
A.8 B.16 C.1 D.5
A.从对端TDS侧取时钟 B.IP时钟 C.伽利略时钟 D.GPS
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