單項(xiàng)選擇題

The Vessel Bridge-to-Bridge Radiotelephone Act applies to（）.

A.every towing vessel of 16 feet or over in length while navigating
B.every vessel of 50 GT and upward，carrying one or more persons for hire
C.all aircraft operating on the water
D.every power-driven vessel of 20 meters and upward while navigating

你可能感興趣的試題

單項(xiàng)選擇題

The unit of duration of a dash in Morse Code is（）.

A.one and one-half times the length of a dot
B.twice the length of a dot
C.three times the length of a dot
D.four times the length of a dot

單項(xiàng)選擇題

The range of a SSB transmission is MOST affected by（）.

A.atmospheric noise and radiated power
B.the frequency band selected and time of day or night
C.interference and position of the moon
D.radiated power and nearness to shore

无码高清视频|成人自拍视频|欧美成人午夜无码A片秀色直播|草美女视频网站|美女被操网站在线观看

The Vessel Bridge-to-Bridge Radiotelephone Act applies to（）.

你可能感興趣的試題

The unit of duration of a dash in Morse Code is（）.

The range of a SSB transmission is MOST affected by（）.