单选题 The concept of a loyal opposition-the ______ of modern democracy —rarely prevails and, much more frequently, opposition is equated with treason and ruthlessly suppressed.(2004年四川大学考博试题)
【正确答案】 B
【答案解析】解析：本题空格处是说现代民主的本质。B项的“essence本质”符合题意。其他三项“loop循环；equivalent等价物；velocity速度，速率”都不正确。