已知圖示桿件的許用拉應(yīng)力[σ]=120MPa,許用剪應(yīng)力[τ]=90MPa,許用擠壓應(yīng)力[σbs]=240MPa,則桿件的許用拉力[P]等于:()
A.18.8kN
B.67.86kN
C.117.6kN
D.37.7kN
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