题目内容：
对流运输指同一种货物(替代货物），在同一线路上或平行线路上作相对方向的运送，而与对方运程的全部或一部分发生重叠交错的运输。The convective transport refers to the same kind of goods (substitute goods), on the same line or parallel lines in the opposite direction of transport, and the other side of the whole or part of the transport overlapping.
A.正确
B.错误
参考答案：【答案仅供学习，请勿对照自行用药等】