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【题目】Two ______ of the earths surface ______ water.

A.third; isB.thirds; is

C.third; areD.thirds; are

【答案】B

【解析】

试题解析:英语中分数的用法,分母用序数词、分子用基数词,当分子为2或2以上的数字,分母要加s;主语surface为不可数名词,故谓语动词用单数。

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