题海让大学四年没有难题
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单选题 Nearly __( )__ of the earth ______ covered by sea

A. three fourth, is

B. three fourths, is

C. three fourth, are

D. three fourths, are

24级A级大学英语课程封面

学科:24级A级大学英语

时间:2025-11-05 11:35:43

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