Series C NOTAMs of Class 2 must be disseminated to domestic area flight information center NOTAMs office（ ）.
A.25 days ago.
B.15 days ago.
C.7 days ago.
正确答案是B
Series C NOTAMs of Class 2 must be disseminated to domestic area flight information center NOTAMs office（ ）.
A.25 days ago.
B.15 days ago.
C.7 days ago.
正确答案是B