_____ important thing in life is to have a great aim, and ______ determination to attain it.

A．An ; 不填B．A ; theC．The ; theD．The ; 不填

C

解析試題分析：考查冠詞。第一空用定冠詞the表示特指，第二空的名稱后面有不定式to attain it修飾，故也是特指，也要使用the。句意：生活中的重要的事情就是要有偉大的目標(biāo)，以及實(shí)現(xiàn)目標(biāo)的決心。故C正確。
考點(diǎn)：考查冠詞
點(diǎn)評(píng)：冠詞的考查集中在定冠詞the表示特指，不定冠詞a/an表示泛指；以及冠詞的一些特殊用法和固定詞組，還有一些不使用冠詞的情況，如抽象名詞，物質(zhì)名詞前面就不要冠詞。

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