你可能感興趣的試題

The shoreline along Rocky Point should give a good radar return because（）.

A.the shore is bluff and rocky
B.of offshore exposed rocks
C.submerged reefs cause prominent breakers
D.the lookout tower is marked with radar reflectors

單項選擇題

The radio waves used for radar are very short，only（）long.

A.a few centimeters
B.a few fathoms
C.a few meters
D.a few feet

To determine if risk of collision exists，a vessel which is fitted with radar must use（）.

你可能感興趣的試題

The shoreline along Rocky Point should give a good radar return because（）.

The radio waves used for radar are very short，only（）long.

To determine if risk of collision exists，a vessel which is fitted with radar must use（）.

The radio waves used for radar are very short，only（）long.