Sulfur dioxide, a major contributor to acid rain, is an especially serious pollutant because it diminishes the respiratory system’s ability to deal with all other pollutants.
答案是a,我选d。。。
especially特别地
specially 专门的
http://forum.chasedream.com/dispbbs.asp?BoardID=23&replyID=2212528&id=235746&skin=0
又是我问过的...建议你还是做cd22 ,不会重复,而且题号和网上的统一,可以搜到以前的讨论!
specially 的解释:
1.for one particular purpose, and only for that purpose
specially trained police dogs specially designed/built/made etc The boats are specially built for the disabled.
2.(spoken) much more than usual, or much more than other people or things
——synonym especially
He specially liked the pie.
see usage note especially
我也有点后悔做gwd31了,题号跟讨论贴都连接不上...
不过印了好多,不做浪费了...
题号和题目好像对不上哦
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