单项选择题
A.Safety helmets B.Goggles and sepctacles C.Breathing apparatus D.Gloves and safety boots
Which of the following equipment is for respiratory pro...
单项选择题Which of the following equipment is for respiratory protection?()
A.Safety helmets B.Goggles and sepctacles C.Breathing apparatus D.Gloves
Which of the following equipment is for face and eye pr...
单项选择题Which of the following equipment is for face and eye protection?()
A.Safey helmets B.Goggles and spectacles C.Breathing apparatus D.Gloves
()contains the wheelhouse with the control station,the ...
单项选择题()contains the wheelhouse with the control station,the chartroom where charts,pilot books and publications are kept,and the radio room.
A.The doube bottom B.The cofferdam C.The navigating bridge D.The superstucture