The reforms threaten the port///'s competitiveness in that ______. ［A］the truckers' unionization would raise the cost of the ports ［B］truckers working at the docks are price-takers ［C］the Teamsters' union would have little bargaining power ［D］environmental groups are not enthusiastic about the plans
A.［A］the
【参考答案】
A 最后一段第一句提出改革会威胁港口竞争力，原因应该从下文搜索。文章指出，目前卡车司机是无雇主的，只能接受价格而......