(1.5 分)The parent book is_______
A.the Sailing Directions B.the corrections to Sailing Directions in force C.the Annual Summary of Notices to Mariners D.the Weekly Edition正确答案A
(1.5 分)The parent book is_______
A.the Sailing Directions B.the corrections to Sailing Directions in force C.the Annual Summary of Notices to Mariners D.the Weekly Edition正确答案A