施工现场进行焊接的焊缝符号,当为单面角焊缝时,下列( )标注方式是正确的。
A <img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20251122/13559887_0.jpg"> B
<img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20251122/13559887_0_1.jpg"> C
<img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20251122/13559887_0_2.jpg"> D
<img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20251122/13559887_0_3.jpg">