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题目内容
（兰州大学大学英语（3））
5.
(4分)South of the equator, 81 percent of the surface of the earth__ water.
A. is
B. are
C. . was
D. were
(4分)South of the equator, 81 percent of the surface of the earth__ water.
A. is
B. are
C. . was
D. were
参考答案