A、A.estimated position
B、B.fix
C、C.running fix
D、D.dead-reckoning position
更多“A position that is obtained by using two or more intersecting lines of position，taken at nearly the same time，is a(n)（）.”相关的问题
A、the position is suitable B、the position is reliable C、the position is changeable D、the position is fixable
A、The cursor is only protected from updates and deletes by concurrent applications. B、The row is only protected from positioned updates and deletes that reference another cursor of the same application. C、The cursor is protected from positioned updates and deletes that reference another cursor of a different application. D、The row is protected from updates and deletes by the current application and from positioned updates and deletes that reference another cursor of the same application.
A、AIS is a short-range VHF-FM system that automatically broadcasts a vessel's position，course，speed and other safety related information to all those with similar equipment in the area B、AIS is a one-way centrally managed system that requires the local VTS to send commands to instruct each vessel to broadcast position，course，speed and other safety related information to all those with similar equipment in the area C、AIS is a global tracking system that relies upon INMARSAT C service to communicate vessel position，course，speed and other safety related information to all those with similar equipment in the area D、AIS is a short-range 3 cm X-band radar system that automatically sends a vessel's position，course，speed and other safety related information to all those with similar equipment within the area
A、AIS is a global tracking system that relies upon INMARSAT C service to communicate vessel position and other safety related information to similarly equipped vessels，aircraft and shore stations within the area B、AIS is a short-range 3 cm X-band radar system that automatically sends a vessel's position and other safety related information to similarly equipped vessels，aircraft and shore stations within the area C、AIS is a short-range VHF-FM system that automatically broadcasts a vessel's position and other safety related information frequently to similarly equipped vessels，aircraft and shore stations within the area D、AIS is a one-way centrally managed system that requires the local VTS to send commands to instruct each vessel to broadcast position and other safety related information to similarly equipped vessels，aircraft and shore stations within the area
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