单选题 Robin's words were not without emotion: they retained their level tone only by a careful ______imminent extremes.
【正确答案】 A
【答案解析】句意：鲁宾的话并不缺乏情绪，他们只是通过小心翼翼地平衡各种突发的极端情绪来保持平稳的语调。equipoise尤指心态平衡，心情平静。embrace拥抱。balance平稳，均势。equivalence均等，等量。