A、one target
B、two targets
C、three targets
D、a large number of targets
更多“Although manual plotting for CPA works well，the workload can become overwhelming when confronted with（）.”相关的问题
A、ignores the effect of surface currents B、is most useful when in sight of land C、must be plotted using magnetic courses D、may be started at an assumed position
A、A. signal fail, signal degrade, manual switch B、B. signal degrade, signal fail, manual switch C、C. protection lockout, manual switch, path AIS D、D. forced switch, manual switch, signal degrade E、E. protection lockout, manual switch, forced switch
A、Easily plotted on a Mercator chart B、Negligible increase in distance on east-west courses near the equator C、Does not require constant course changes D、Plots as a straight line on Lambert conformal charts
A、 signal fail， signal degrade， manual switch B、 signal degrade， signal fail， manual switch C、 protection lockout， manual switch， path AIS D、 forced switch， manual switch， signal degrade E、 protection lockout， manual switch， forced switch
A、Wait-to-Restore，Forced Switch，Manual Switch，Lockout of Protection B、Manual Switch，Wait-to-Restore，Lockout of Protection，Forced Switch C、Lockout of Protection，Forced Switch， Manual Switch，Wait-to-Restore D、Lockout of Protection，Manual Switch， Forced Switch，Wait-to-Restore E、Wait-to-Restore，Manual Switch，Forced Switch，Lockout of Protection F、Wait-to-Restore，Manual Switch，Lockout of Protection，Forced Switch
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