Arrogance and pride are similar in meaning, but there is difference between them.A. a sub

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A. a submerged
B. an indecisive
C. an indistinct
(答案→)D. a subtle
解析：　　subtle微妙的，微细的，难以捉摸的。a subtle difference.（微细的差别）。Submerged浸没的；indecisive非决定性的，非结论性的，未清楚标明的；indistinct不清楚的，模糊的；subconscious下意识的。