承重结构用的木材,若构件受拉或受拉弯,采用木材的材质宜为( )。
A <img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20251122/13559394_0.jpg"> B
<img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20251122/13559394_0_1.jpg"> C
<img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20251122/13559394_0_2.jpg"> D
<img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20251122/13559394_0_3.jpg">