No matter how hard you try, you can find no parallel existing between them.
【正确答案】 A
【答案解析】解析:名词辨析。parallel相似物,类似,平行线、面;A.analogy类似,类推;B.angel天使,完善可爱的人;C.ambition野心,雄心;D.antique古物,古董;因此A为答案。