Under International Rules（）.<br>A:all vessels must carry an after range light<br>B:vessels less than 50 meters in length need not carry an after range light<br>C:vessels stopped dead in the water should turn off their range lights<br>D:vessels over 20 meters in length must carry both range lights from sunset to sunrise

Under International Rules（）.
A:all vessels must carry an after range light
B:vessels less than 50 meters in length need not carry an after range light
C:vessels stopped dead in the water should turn off their range lights
D:vessels over 20 meters in length must carry both range lights from sunset to sunrise

出自：海船船员证

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