极速赛车公式技巧图片

简介：Zhu Cixiang nodded: Yes, sea transportation is indeed high-risk, but it has four advantages that water transportation cannot match, namely, fast speed, large transportation volume, low cost, and labor saving. Especially the cost is low. The imperial court spends nearly one million taels per year on dredging the Cao River, but if it is transported by sea, the cost can be reduced by at least half.