【单选题】
A piece of small stuff (small line) secured to an object to prevent it from going adrift is a（）.
A、lanyard
B、keeper
C、noose
D、stopper
查看正确答案
A、Use either 1 or 2 tiers of dunnage，spacing the pieces in each tier a foot apart，and lay pieces in the bottom tier diagonally to the ship's side B、Use 1 tier of dunnage，laying the pieces tightly together to form a solid floor over the steel deck C、Use 2 tiers of dunnage，spacing the pieces in the bottom tier about a foot apart and the pieces in the top tier 6 inches apart D、Use 2 tiers of dunnage，spacing the pieces in the bottom tier about a foot apart and the pieces in the top tier together
