单项选择题

At sea, much of the sailor’s time is spent （）the ship and keeping her equipment in good condition.

A.to maintain
B.maintaining
C.maintenance
D.maintain

点击查看答案&解析

上一题目录下一题

单项选择题

A. The chief officer
B. The duty sailor
C. The bosun
D. Captain

单项选择题

A. Screwdrivers
B. Derricks
C. Chipping hammers
D. Saws

单项选择题

A. Bosun
B. Chief officer
C. Third officer
D. Second officer