单选题The International Association of Lighthouse authorities (IALA) buoyage system “A” uses some types of marks to distinguish safe navigation? Which type(s) does(do) not belong to the system?()Alateral marks and cardinal marksBsafe water marksCisolated danger marks and special marksDdangerous water marks
单选题
The International Association of Lighthouse authorities (IALA) buoyage system “A” uses some types of marks to distinguish safe navigation? Which type(s) does(do) not belong to the system?()
A
lateral marks and cardinal marks
B
safe water marks
C
isolated danger marks and special marks
D
dangerous water marks
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