The captain wants to see the （）.

单项选择题The captain wants to see the （）.

A. chief officer
B. second officer
C. third officer
D. carpenter

1.单项选择题Echo sounder sends a（） (无线电信号)from the bottom of the ship to the seabed.

A. radio signal
B. radio wave
C. signal
D. signal radio

2.单项选择题Radar is of great help to ship in poor（）(能见度).

A.visibility
B.VHF
C.visible
D.compass

3.单项选择题Navigators use navigational aids, such as（）（罗经）.

A.sextant
B.binoculars
C.compass
D.loran

4.单项选择题（）（电罗经）can tell us true north.

A.VHF
B.Radar
C.Chart
D.Gyro-compass

5.单项选择题Officers observe ships with a pair of （）（望远镜）.

A.sextant
B.binoculars
C.compass
D.radar

6.单项选择题The （）（天线）is like a dish.

A.line
B.thread
C.aerial
D.wire

7.单项选择题This is a radio （）（测向仪）.

A.compass
B.direction finder
C.loran
D.sextant

8.单项选择题The ship’s（）（天文钟）is a very accurate clock.

A.watch
B.chronometer
C.time
D.clock

9.单项选择题The bosun is good at（）(打绳结).

A. knotting line
B. making knots
C. knots
D .making line

10.单项选择题The third officer is （） (负责)the fire-fighting equipment.

A. responsible
B. take charge of
C. in charge of
D. control