【单选题】
A large navigational buoy (LNB) is painted（）.
A、red
B、yellow
C、with red and white vertical stripes
D、with a distinct color and pattern unique to each buoy
查看正确答案
A、The topics for warnings included in HYDROLANTS，HYDROPACS，and NAVAREA warnings are the same B、NAVAREA warnings concern only coastal navigation and inland navigation in large bays or sounds such as Puget Sound C、The United States is responsible for NAVAREA warnings in the North Atlantic north of 7°N，and west of 15°W D、Long range radio navigational warnings are usually broadcast by radiotelephone，radiotelegraph，and radio-teletypewriter
