检查开口是否有从边角开始的裂缝
A.Check the cut for gaps that start at its corners. B.Examine-the opening for cracks that start at its corners. C.inspect the clearance of gate from the corner.）正确答案B
检查开口是否有从边角开始的裂缝
A.Check the cut for gaps that start at its corners. B.Examine-the opening for cracks that start at its corners. C.inspect the clearance of gate from the corner.）正确答案B
