问题
判断题
液压传动与液力传动不同，采煤机上采用的是液力传动。（）
答案
参考答案：错
搜题请搜索小程序“爱下问搜题”
液压传动与液力传动不同，采煤机上采用的是液力传动。（）
参考答案：错
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| Mr.Smith is a good teacher. He is 1 . There 2 fifty students in 3 class. Mr. Green and his students are 4 friends, too. Now some of the students 5 on the playground. Bill and Mike 6 . Tom and John are jumping. Mary and Lucy are 7 a kite. 8 girls are playing 9 . Mr.Smith is playing 10 hem. | ||||
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