專技高考-建築師建築結構111 年第 24 題單選題如圖所示桿件受軸向外力作用，F1 = 100 kN，F2 = 500 kN，則 A、B 處反力大小為何？ARA = 250 kN, RB = 350 kNBRA = 270 kN, RB = 330 kNCRA = 290 kN, RB = 310 kNDRA = 350 kN, RB = 250 kN 答案與詳解
