【单选题】
CTCS2列控系统中地面点式信息设备通常称为_______。[313000000]___
A. 应答器
B. 发送器
C. 点式接收器
D. 游标
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Fzh-CTC分散自律调度集中KVM延长器在正常情况下上面的指示灯是_______的。[332010201]___
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