单选题 The factory uses Mike as a go-between when the management and the trade union are having one of their ______.

【正确答案】 A

【答案解析】[解析] 考查名词辨析。disputes“争端，纠纷”，disturbances“干扰，骚乱”，dissatisfactions“不满”，disorders“混乱”。句意为“当管理层和工会出现______时，工厂把迈克当作中间人”。根据句意，A项最恰当。