【題目】To get _______ thorough understanding of oneself also requires doing oneself ______favor when it's needed.

A . the； a B.不填；a

C. the；不填 D. a；a

【答案】D

【解析】

試題解析：考查定冠詞，表示某種特性，使抽象名詞具體化。句意：為了全面地了解自己還需要適時(shí)地幫助自己。故選D。拓展：用于某些不可數(shù)抽象名詞如knowledge, collection, understanding, feeling等前面，名詞后 面加of，使抽象名詞具體化為表示某種特性,狀態(tài),行為的具體表現(xiàn)形式,常以"a/an+（adj.）+ 抽象名詞+of"出現(xiàn) 。

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