The shaft and spare parts（） should be well greased in order to avoid corrosion.<br>A:in the store room<br>B:in the cylinder<br>C:in the scavenge air box<br>D:in the water box

The shaft and spare parts（） should be well greased in order to avoid corrosion.
A:in the store room
B:in the cylinder
C:in the scavenge air box
D:in the water box

出自：海船船员证

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