A、<span style="FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt;">主要荷载</span>
B、<span style="FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt;">主要荷载＋附加荷载</span>
C、<span style="FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt;">主要荷载＋特殊荷载</span>
D、<span style="FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt;">附加荷载＋特殊荷载</span>