Since the engine doesn’t work well, you’d better （） as soon as possible.<br>A:reduce its speed<br>B:find out its trouble<br>C:eliminate its trouble<br>D:all the above

Since the engine doesn’t work well, you’d better （） as soon as possible.
A:reduce its speed
B:find out its trouble
C:eliminate its trouble
D:all the above

出自：海船船员证

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