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        1. 【題目】Sui Yiyuan is ________ 12-year-old boy who donated his bone marrow(骨髓) to save his mother.

          A.aB.anC.theD./

          【答案】A

          【解析】

          句意:隋翼遠是個12歲的男孩,為了救母親,他捐獻了他的骨髓。

          考查冠詞的用法。a一個,泛指,用在輔音音素開頭的單詞前面;an一個,泛指,用在元音音素開頭的單詞前面;the表特指。此處泛指一個12歲的男孩,要用不定冠詞?崭窈12twelve)是以輔音音素開頭的單詞,故用a。故選A

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