A vessel is “in sight” of another vessel when().
A. she can be observed by radar
B. she can be observed visually from the other vessel
C. she can be plotted on radar well enough to determine her heading
D. her fog signal can be heard
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()是一种自动播放的Flash影片,不需要FlashPlayer就可以播放。
A. Windows放映文件(.exe)
B. Flash(.swf)
C. GIF图像(.gif)
D. PNG图像(.Png)
试验装置的高压引线应尽量(),并采用专用的高压试验线,必要时用()支持牢固。
营业窗口收取的新邮预订款或保证金必须按()上缴财务部门,不得以任何理由挪用。