【单选题】
It has been estimated that the earth's surface temperature has increased ______one quarter to three fourths of a degree since 1850.
A.by
B.at
C.to
D.with
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根据网考网移动考试中心的统计,该试题:
75%的考友选择了A选项
14%的考友选择了B选项
6%的考友选择了C选项
5%的考友选择了D选项