It has been estimated that the earth’s surface temperature has increased ______ one quarter to three fourths of a degree since 1

admin2012-12-05  11

问题 It has been estimated that the earth’s surface temperature has increased ______ one quarter to three fourths of a degree since 1850.

选项 A、by
B、at
C、to
D、with

答案A

解析 应该掌握选项中四个介词的不同用法,修饰数字的介词一般为by,所以A项答案正确。全句意思为"据估计,从1850年以来,地表温度增加了0.25—0.75℃"。
转载请注明原文地址:https://kaotiyun.com/show/Tmii777K
0

最新回复(0)