A.Only the stern light of the vessel B.One sidelight and a masthead light of the vessel C.Only a sidelight of the vessel D.The masthead lights of the vessel
A.positive B.negative C.zero D.vertical
A.If the quadrantal spheres are out as far as possible replace them with smaller spheres B.If the quadrantal spheres are in as far as possible remove one of the spheres C.If the quadrantal spheres are in as far as possible replace them with smaller spheres D.If the quadrantal spheres are out as far as possible,move the quadrantal spheres in