6、所要求的跑道视程与决断高的关系是？What is the relationship between RVR and DH f

6、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;

正确答案是B