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精英家教網 > 高中英語 > 題目詳情
Jumping out of ___ airplane at a height of 5000 kilometers is ___ unforgettable experience.           
A．an ; aB．an ; anC．an ; /D．a ; an
B

試題分析：考查冠詞用法。修飾可數名詞用不定冠詞a/an；這里的“一架飛機”是泛指，airplane首字母發音是元音，故用an，排除D；experience指“經歷”時，是可數名詞，unforgettable首字母發音是元音，用an修飾，排除A、C，故選B。
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