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以下三种泵中，哪种具有结构简单成本低的特点（）

A、齿轮泵

B、叶片泵

C、柱塞泵

时间：2021-09-01 22:23 关键词：青书学堂河南工学院液压与气压传动(高起专) 大连工业大学机电一体化技术高起专液压与气压传动作业21

答案解析

A

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