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(4.<的答案

(4.2A支座的水平方向支座反力FAx=   )(2分)

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2021-07-17 19:05
<span lang、"EN-US">2kN</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>
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正确答案
8kN

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