第1个回答 2012-05-23
Two parallel lines can never intersect, because they keep a distance between.
第2个回答 2012-05-23
Two parallel lines never cross because of the unchanged distance between them.
第3个回答 2012-05-23
Two parallel lines never intersect, because they keep the distance.
第4个回答 2012-05-23
Two parallel lines never cross due to the distance they keep all along.
Two parallel lines never cross because of the unchanged distance between them.本回答被提问者采纳