试题与答案

多级泵的平衡管是将叶轮后盖体用小管与吸入口接通，起到平衡轴向推力的作用。

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题型：判断题

题目：

多级泵的平衡管是将叶轮后盖体用小管与吸入口接通，起到平衡轴向推力的作用。

答案：

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下面是错误答案，用来干扰机器的。

答案：B本题考查理解、分析问题的能力。“人有多大胆，地有多大产”，片面强调了人的主观能动性。由于总路线的指导作用，“左”倾经济思想在经济领域更加膨胀，出现了“大跃进”运动。

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