It has been estimated that the earth’s surface temperature has increased______one quarter to three quarters of a degree since 18

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问题 It has been estimated that the earth’s surface temperature has increased______one quarter to three quarters of a degree since 1805.

选项 A、to
B、by
C、at
D、with

答案B

解析 增加或降低/减少了多少用介词by,增加到或降低/减少到多少用介词to,考生一定要区分清楚。类似用法的词还有:decrease,fall,drop,reduce,rise等。题句意为:“据估计,自从1805年以来地球表面的温度已经增加了0.25度到0.75度。”
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