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(3.<的答案

(3.2A支座的竖直方向支座反力FAy=   2分)

多选题
2021-07-17 19:05
<span lang、"EN-US">4kN</span><span>(</span><span lang="EN-US">↑</span><span>)</span>
<span lang、"EN-US">4kN</span><span>(</span><span lang="EN-US">↓</span><span>)</span>
<span lang、"EN-US">8kN</span><span>(</span><span lang="EN-US">↑</span><span>)</span>
<span lang、"EN-US">8kN</span><span>(</span><span lang="EN-US">↓</span><span>)</span>
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正确答案
8kN

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