1、Ⅱ类的决断高是多少？ What is the DH for CAT Ⅱ?

1、Ⅱ类的决断高是多少？ What is the DH for CAT Ⅱ?

A.低于45米但不低于30米。below 45m but not below 30m;

B.低于100米但不低于60米。below 100m but not below 60m;

C.低于60米但不低于30米。below 60m but not below 30m;

正确答案是C