单项选择题
A.has a spray pattern 12 feet in diameter B.can be used in conjunction with both 1-1/2 inch and 2-1/2 inch all-purpose nozzles C.has a 90°bend at its discharge end D.has a screw thread end which connects to the all-purpose nozzle
Splices made in nylon should（）.A.be long splices onlyB....
单项选择题Splices made in nylon should（）.
A.be long splices only B.have extra tucks taken C.be short splices only D.be around a thimble
Right-laid line should be coiled（）.A.clockwiseB.counter...
单项选择题Right-laid line should be coiled（）.
A.clockwise B.counterclockwise C.either clockwise or counterclockwise D.on a reel
On small sailing vessels，the PRIMARY reason for using n...
单项选择题On small sailing vessels，the PRIMARY reason for using nylon in a combination chain-nylon anchor line is to（）.
A.provide elasticity B.increase the strength C.reduce the cost D.reduce the weight
