单项选择题
A. primer boat B. protective coat C. top coat D. under coat
The purpose of lookout is to prove the （）(安全) of a ship...
单项选择题The purpose of lookout is to prove the （）(安全) of a ship.
A.stern B.safety C.saw D.spanner
Where is the （）(撬棍)？A.hacksawB.needleC.crowbarD.hammer
单项选择题Where is the （）(撬棍)？
A.hacksaw B.needle C.crowbar D.hammer
please use the （）(拖把) to clean the floor.A.brownB.broom...
单项选择题please use the （）(拖把) to clean the floor.
A.brown B.broom C.brush D.mop
