【单选题】
___是滑动轴承中应用最广的一种润滑剂（易）
A. 润滑油
B. 润滑脂
C. 水
D. 泡沫
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答案
A
解析
暂无解析
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be/ get caught up in
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in sb. 's words，count on，make sense of ，reserve for， shield from，call on， sum up， relate to ，in need，
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