The development of（）led to the fully automatic ARPA systems installed on commercial ships.<br>A:SeaTalk<br>B:powerful microprocessors and mega memory capacity<br>C:chartplotter<br>D:small-scale chart

The development of（）led to the fully automatic ARPA systems installed on commercial ships.
A:SeaTalk
B:powerful microprocessors and mega memory capacity
C:chartplotter
D:small-scale chart

出自：海船船员证

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