單項選擇題Radar is used to not only to look（）,but also to measure their distances away from you.
A.at obscured objects
B.forward submerged targets
C.up exposed targets
D.for unseen objects
您可能感興趣的試卷
你可能感興趣的試題
1.單項選擇題Radar makes it possible for us（）in dense fog.
A.to be sailing
B.sailing
C.sail
D.to sail
2.單項選擇題Raw la quer is（）corrosive nature.
A.in
B.of
C.on
D.with
最新試題
Before any loading takes place any signs of the previous cargo should do（）.
題型：單項選擇題
When steering by autopilot,how often should the steering be checked?（）
題型：單項選擇題
The circulation around a low pressure center in the Northern Hemisphere is（）.
題型：單項選擇題
Fog is likely to occur when there is little difference between the dew point and the（）.
題型：單項選擇題
The mean draft of a ship is the draft（）.
題型：單項選擇題