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oftheearthmadeupofoceans.A.Two-third;isB.Two-thirds;isC.Two-third;areD.Two-thirds;are

题目详情
_______ of the earth _______ made up of oceans.
A.Two-third; is B.Two-thirds; is C.Two-third; are D.Two-thirds; are
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答案和解析
B
分数表示时,分子基数词 分母序数词 分子大于一 分母加's'
因earth是不可数 故用is