"The tops of the thwarts, side benches, and the footings of a lifeboat should be painted .
A.orange
B.yellow
C.white
D.red
正确答案是A
"The tops of the thwarts, side benches, and the footings of a lifeboat should be painted .
A.orange
B.yellow
C.white
D.red
正确答案是A