A.從船首至船尾,右舷艇為雙數(shù)號(hào),左舷數(shù)為單數(shù)號(hào) B.從船尾至船首,右舷艇為單數(shù)號(hào),左舷艇為雙數(shù)號(hào) C.從船首至船尾,右舷艇為單數(shù)號(hào),左舷艇為雙數(shù)號(hào) D.從船首至船尾,左、右艇的編號(hào)相同
A.30分鐘 B.10分鐘 C.5分鐘 D.3分鐘
A.雙數(shù) B.單數(shù) C.隨意 D.無(wú)需編號(hào)