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【題目】Mr. Li's class has fifty- one students, ________ of them are girl students.

A.second-thirdsB.second-thirdC.one-thirdD.two-second

【答案】C

【解析】

句意:李老師的班級有51名學生,其中三分之一是女生。

考查分數(shù)表達。英語中數(shù)詞表達分數(shù)時,分子一般用基數(shù)詞,分母用序數(shù)詞,而如果分子大于1時,分母要變成復數(shù)形式,由此可以判斷,A/ B/ D選項的表達結構都是錯誤的,所以這里應該選擇C選項,故選C。

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