单项选择题
A.8B.9C.10D.11
A.11m,0.5m,28.5mB.11.2m,0.8m,28.5mC.11.2m,0.5m,28.5mD.11.2m,0.5m,26m
A.断裂B.压带C.打滑D.撕扯