<img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20251104/9406495_0.jpg"><br/> <img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20251104/9406495_0_1.jpg"><br/> <br/> 1.试问，该墙梁跨中截面的计算高度H0与下何项数值最为接近？（　　）