99色精品-9色在线-99色在线-99色视频 国产欧美日产一区二区三区_亚洲精品亚洲人成在线观看_四虎在线精品永久观看_免费一级a一片久久精

單項選擇題

According to the Code of Federal Regulations,on vessels other than river ferryboats and river vessels,how are periodic lifeboat weight tests required to be conducted?()

A.The lifeboat is lowered to near the water,loaded with the allowed capacity,lowered into the water until afloat,then released from the falls
B.The lifeboat is loaded with the allowed capacity,lowered into the water until afloat,then released from the falls
C.The lifeboat is lowered into the water until afloat,loaded with the allowed capacity,then released from the falls
D.The lifeboat is lowered to near the water,loaded with the allowed capacity,then released from the falls

微信掃碼免費搜題