When we couldn’t escape from a rough sea, we would ____in a cave and pass the night shivering. (refuge)
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As I thought about influential modern artists, three names immediately____. (mind)
It is a natural that he should ____with such a beautiful girl. (love)
按摩擦面损伤和破化形式,磨损机理有( )
A. 粘着磨损
B. 磨料磨损
C. 腐蚀磨损
D. 接触疲劳磨损
齿轮在滚动兼滑动的条件下常发生的磨损失效形式是( )
A. 表面麻点剥落
B. 深层剥落
C. 盆状浅层剥落
D. 腐蚀剥落