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【题目】Or students, preparing for Gaokao is a difficult but _____ challenge that will shape their future.

A.controversialB.arbitraryC.tentativeD.worthwhile

【答案】D

【解析】

考查形容词的词义辨析。句意:对于学生来说,准备高考是一个困难但值得的挑战,它将决定他们的未来。Acontroversial有争议的;Barbitrary任意的;Ctentative试探性的;Dworthwhile有价值的。but表转折,所填词汇应与difficult的感情色彩相反,结合句意,高考决定学生的未来,准备高考虽然困难,但却是一个值得的挑战。故选D项。

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