用打孔卡编织机编织提花组织时，侧凸轮杆处于（ ）位。
查看答案
用打孔卡编织机编织提花组织时，打孔的位置编织1号纱线，未打孔的位置编织2号纱线。
A. 对
B. 错
What is the fundamental（基本） concept of the GMDSS?
A. It is intended to automate and improve existing digital selective calling procedures and techniques.
B. It is intended to automate and improve emergency communications in the maritime industry.
C. It is intended to provide more effective but lower cost commercial communications.
D. It is intended to provide compulsory vessels with a collision avoidance system when they are operating in waters that are also occupied by non-compulsory vessels.
What is defined as an area, excluding sea area A1, within the radiotelephone coverage area of at least one MF coast station, in which continuous DSC alerting is available as defined by the IMO?
A. Ocean Area Regions AOR-E, AOR-W, POR or IOR
B. Sea Area A4
C. Sea Area A3
D. Sea Area A2
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