作者：英吉
According to scientists at the University of Alaska, while the surface temperature of the globe has risen over the last century by about one degree Fahrenheit, the surface temperature in Alaska, Siberia, and northwestern Canada has increased in the previous thirty years by about five degrees.
(A) the surface temperature in Alaska, Siberia, and northwestern Canada has increased in the previous thirty years by about five degrees
(B) the surface temperature in Alaska, Siberia, and northwestern Canada has increased over the last thirty years by about five degrees
(C) there was an increase in the last thirty years by about five degrees in Alaska, Siberia, and northwestern Canada
(D) it had increased in Alaska, Siberia, and northwestern Canada by about five degrees over the previous thirty years
(E) it has increased in Alaska, Siberia, and northwestern Canada over the previous thirty years by about five degrees
原文意思：根据科学家调查，全球温度在过去上升了1度而有些地方的温度上升了5度
题目分析：前后有一个对比，就是全球温度怎么样了和某些地方的温度怎么样了进行对比，
A前面用over the last century而后面用in the previous thirty years不对应，杀！
B用over the last century和前面对应，留着。
CDE开头都没说温度，那就和前面的surface temperature无法对应了，杀！
