相关考题
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单项选择题
This is a radio （）（测向仪）.
A.compass
B.direction finder
C.loran
D.sextant -
单项选择题
The ship’s（）（天文钟）is a very accurate clock.
A.watch
B.chronometer
C.time
D.clock -
单项选择题
The bosun is good at（）(打绳结).
A. knotting line
B. making knots
C. knots
D .making line
