Shims of different thicknesses are inserted between the shells to enable adjustment of （）.<br>A:the bearing clearances<br>B:the bearing thickness<br>C:the bearing strength<br>D:the bridge hardness

Shims of different thicknesses are inserted between the shells to enable adjustment of （）.
A:the bearing clearances
B:the bearing thickness
C:the bearing strength
D:the bridge hardness

出自：海船船员证

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