II类进近至少看到几个灯段算是在决断高处获得足够的目视参考？How many lights segments at least should be seen at DH for CAT II approach？
A.三个。three
B.四个。four
C.六个。six
正确答案是1
II类进近至少看到几个灯段算是在决断高处获得足够的目视参考？How many lights segments at least should be seen at DH for CAT II approach？
A.三个。three
B.四个。four
C.六个。six
正确答案是1