单项选择题
A.Oars B.Up oars C.Way enough D.Hold water
Safety goggles or glasses are NOT normally worn when（）....
单项选择题Safety goggles or glasses are NOT normally worn when（）.
A.using a rotary grinder with an installed shield B.letting go the anchor C.handling wire rope or natural fiber line D.painting with a spray gun
Safe water buoys may show ONLY（）.A.flashing red lightsB...
单项选择题Safe water buoys may show ONLY（）.
A.flashing red lights B.flashing green lights C.white lights D.yellow lights
On cargo and miscellaneous vessels what is NOT a requir...
单项选择题On cargo and miscellaneous vessels what is NOT a required part of the fireman’s outfit?（）
A.Self-contained breathing apparatus with a lifeline attached B.Combustible gas indicator C.Rigid helmet，boots，and gloves D.Flame safety lamp
