Q39 [Plants are more efficient at acquiring carbon than are fungi], in the form of carbon dioxide, and converting it to energy-rich sugars.
A.  lants are more efficient at acquiring carbon than are fungi B.  lants are more efficient at acquiring carbon than fungi C.  lants are more efficient than fungi at acquiring carbon D.  lants, more efficient than fungi at acquiring carbon E.  lants acquire carbon more efficiently than fungi 我选了C, 答案是C, 但我不明白为什么A,B,E错在什么地方,一见到than 总有种拿不定主意的感觉.
主语+be动词+形容词比较级时,助动词不需要补出,只将主语补出即可(those/that)例:Natalie was prettier than her sister;
当句子结构为:主语+be动词+形容词比较级+介词短语要补足介词短语
--自己的一点总结,欢迎大家指正
C选像将介词短语后置,所以变成了第一种情况,只需要补出主语即可
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