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2．如图所示，一条管道，A、B两点的高差<img alt="" height="19" src="/api/uploads/1536499/in-rich-contentcreated_at=1647290494" width="69">，A点处直径<img alt="" height="23" src="/api/uploads/1536500/in-rich-contentcreated_at=1647290494" width="80">，A点压强<img alt="" height="24" src="/api/uploads/1536501/in-rich-contentcreated_at=1647290494" width="108">，B点处直径<img alt="" height="23" src="/api/uploads/1536502/in-rich-contentcreated_at=1647290494" width="80">，B点压强<img alt="" height="24" src="/api/uploads/1536503/in-rich-contentcreated_at=1647290494" width="108">，管中流量<img alt="" height="24" src="/api/uploads/1536504/in-rich-contentcreated_at=1647290494" width="105">，试判断管中水流方向？
<img alt="" height="232" src="/api/uploads/1536505/in-rich-contentcreated_at=1647290494" style="display: block; margin-left: auto;" width="236">(简答题)

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出自：2024年国家开放大学答案

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