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

<ruby id="5samk"><output id="5samk"></output></ruby>

<em id="5samk"></em>

單項(xiàng)選擇題

An ECDIS is required to display which information?（）

A.Radar targets
B.ARPA vectors
C.Hydrographic data
D.All of the above

你可能感興趣的試題

單項(xiàng)選擇題

A tall object with a light on or near the shore，to act as a guide or warning to mariners is called（）.

A.beam
B.radar
C.light beacon
D.reflector

單項(xiàng)選擇題

A radar range to a small，charted object such as a light will provide a line of position in which form?（）.

A.Straight line
B.Arc
C.Parabola
D.Hyperbola