第24题:[单选题] What is the most important source of information to be used in correcting charts and keeping them up to date ________. A.Fleet Guides B.Notice to Mariners C.Sailing Directions D.Pilot Charts 参考答案:B 【参考译文】什么出版物是用于更正海图和使海图保持最新的最重要信息来源?航海通告。 【解 析】Fleet Guides航队航行指南