考古 【by XYXB】 V1 six ship companies share cost of .... for20 feet... X company want to use 40feet ... Thus the cost shared wouldincrease. However, the proposal will not be denied by the other companies, the reason for this? B the other five companies have the same products of X. (I choose this one) D X uses .... no more than the other five companies. V2 六个船公司,每年挖河底20米,挖费6个公司平坦,有另一家想加入,但其船吃水40米,也就是说河底要重挖,不过,其他六家公司不会反对,问理由?我选的是该公司的加入不会导致每年挖more than once V3 说有六家船运公司通用一个河道,疏通费用也是分担的,通常他们只要求20feet的什么什么。后来一家公司要求分享该河道,而该公司则要求40feet的什么什么,并要求费用分担。在这一看上去明显不利于6家公司的情况下,这些公司仍然同意合作,since----------