A、lighted with a white light
B、striped black and red
C、lighted with a red light
D、yellow
更多“A special purpose buoy shall be（）.”相关的问题
A、FB包是系统最近备份的软件包，通常与BU包相同 B、NW包和FB包都可通过MML命令转换成BU包 C、系统中只能各有一个NW包、FB包和BU包 D、NW包、BU包和FB包都不能被直接删除
A、must be lighted B、may have a flashing red light C、may have a fixed white light D、None of the above
A、the starboard side of the channel B、the centerline of the channel C、an obstruction where the preferred channel is to starboard D、special purpose areas
A、in sight of one another in fog B、navigating in or near an area of restricted visibility C、only if they are showing special purpose lights D、only if they have operational radar
A、在下述各组化合物中按题目要求进行选择。 B、A.下列中，最强的Lewis酸有哪些？ C、（1）BF3，BCl3，BBr3； D、（2）BeCl2，BCl3； E、（3）B（n-Bu）3，B（t-Bu）3； F、B.下列中对B（CH3）3的碱性较强的有哪些？ H、（1）Me3N，Et3N； I、（2）（2-CH3）C5H4N，（4-CH3）C5H4N；（Bu丁基；C5H4N吡啶）
A、you should stay to the north or east of the buoy B、you should stay to the west or south of the buoy C、the buoy is a major lighted buoy D、nothing special for navigational purposes
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