【判断题】配气机构按气门的布置位置分为顶置式和侧置式两种配气机构。
【单选题】在海洋测量中,灯塔、灯桩的灯光中心高度从()面起算。
【判断题】深度基准是海洋深度测量归算和海图上图载水深的统一起算面
【单选题】By 'the voyagers' in Paragraph 2, the writer means ______.
A.
Kupe and his followers
B.
the Hawaikian colonists
D.
the European explorers
【多选题】海洋测绘,主要涉及那些海洋测量的知识要点(技术环节)?
【多选题】海洋测量,确定深度基准面的基本原则有哪些?
B.
保障航道或水域水深资源的有效利用(其衡量尺度:深度基准面保证率)
【单选题】According to the writer, the most important character for a good manager is his______.
A.
having control over performance
B.
high sense of responsibility
C.
knowing the art of relaxation