The field length of air transport airports whose flight region g
2023-12-01英文执照选择题
The field length of air transport airports whose flight region grading index is I is______for grade 1, _______ for grade 2, _______ for grade 3 and _______ for grade 4.
A.less than 500m, 500 to 800m, 800 to 1200m, more than 1200m
B.less than 800m, 800 to 1200m, 1200 to 1800m, more than 1800m
C.less than 500m, 500 to 1000m, 1000 to 1500m, more than 1500m
D.less than 1000m, 1000 to 1500m, 1500m to 2500m, more than 2500m
正确答案是B
