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【判断题】
受纯径向载荷时选用径向接触轴承,其中深沟球轴承应用最广。A.
正确
B.
错误
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【简答题】完形填空（共20小题，每小题1分，满分20分） 阅读下面短文，从短文后各题所给的四个选项（A、B、C和D）中，选出可以填入空白处的最佳选项。 Our three-year-old daughter Becky wanted a dog. But we were too busy to buy one. One day, Becky ran in, shouting, “Mom! Come to s...
【简答题】完型填空（共20小题，满分30分） Our three-year-old daughter Becky wanted a dog.But we were too busy to buy one.One day, Becky ran in, shouting, “Mom! Come to see my dog!” Her face was red with 36 . I followed her t...
【简答题】阅读理解。 Everyone knows the smart blackandwhite dog that sits on top of a red doghouse with his best friend-a bird called Woodstock. Created by the American cartoonist Charles Schulz in 1950, the clever ...
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