15.下列何者不屬於露天甲板貨櫃的固著屬具?(A)上下堆積連接屬具(StackingFitting)(B)甲板固著屬具(DeckSecuringFitting)(C)橋式水平連接屬具(BridgeFitting)(D)貨櫃倒槽(CellGuide)