單項(xiàng)選擇題

Radar is not only to obtain（）,but also to measure their distance away from you.

A.brightness of obtain
B.color of targets
C.shape of targets
D.bearing of objects

你可能感興趣的試題

單項(xiàng)選擇題

The anchor was then（）and the siren sounded.

A.aweigh
B.weight
C.weigh
D.weighing

單項(xiàng)選擇題

Are there many（）and warehouses in the port?

A.wharf
B.wharves
C.wharve
D.wharfs