单选题图为两块钢板用拼接板连接，采用三面围焊缝，承受静力荷载作用。<br/> <br/> <img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20251104/9406432_0.jpg"><br/> <br/> 1.焊脚尺寸应根据下列哪一项确定？（　　）<br/> <br/> <img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20251104/9406432_0_1.png">