A.順風撤退 B.去災區(qū)搶險 C.就地耐心等待救援 D.迎風撤退
A.5%~12% B.3%~16% C.5%~15% D.5%~16%
A.250℃~650℃ B.450℃~750℃ C.350℃~650℃ D.650℃~750℃