A.-0.25 B.-0.36 C.0.47 D.-0.47
A.能通過;dF=7.4m,dA=6.60m B.能通過;dF=6.60m,dA=7.40m C.不能通過;dF=7.8m,dA=7.00m D.不能通過;dF=7.0m,dA=7.80m
A.10.98 B.11.36 C.10.85 D.11.74