Ⅱ类的决断高是多少? What is the DH for CAT Ⅱ?

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