[ 单选题 ] CAT II 易 

所要求的跑道视程与决断高的关系是？What is the relationship between RVR and DH for CATⅡ requirements？
  • A、 
    相互独立。independent
  • B、 
    跑道视程根据决断高进行计算。the RVR is calculated according to DH
  • C、 
    决断高根据跑道视程进行计算。the DH is calculated according to RVR
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