When the ship in the condition of stand-by and engine trials, usually put the engine telegraph in the （） position.<br>A:stand by<br>B:slow ahead<br>C:slow astern<br>D:B or C

When the ship in the condition of stand-by and engine trials, usually put the engine telegraph in the （） position.
A:stand by
B:slow ahead
C:slow astern
D:B or C

出自：海船船员证

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