在船上应当日出时升起国旗。（）
- A、On board national flags should be hoisted when the sun sets.
- B、On board national flags should be hoisted when the sun rises.
- C、On board national flags should be lowered when the ship is in port.
- D、On board national flags should be hoisted flag when loading and discharging
正确答案:B
答案解析:有
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