单选题浮动式活塞销的主要优点是（）。A降低销与连杆小端轴承和活塞销座的相对速度，减少磨损B使磨损均匀C加大承压面积，减小比压力DA＋B
单选题
浮动式活塞销的主要优点是（）。
A
降低销与连杆小端轴承和活塞销座的相对速度，减少磨损
B
使磨损均匀
C
加大承压面积，减小比压力
D
A＋B
参考解析
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