我今天再看杨鹏难句054: the consumption of protein increase blood concentration of the other amino acids much more, proportionately, than it does that of tryptophan.
我觉得以上这句句子中的it指代the consumption of protein是不是也有同样的问题呢 ?同一个the consumption of protein既增加了前面又增加了后面。
the comsuption of protein increase blood cencentration of the other AA much more than it (the comsuption of protein) does (increase) that (blood concentration) of tryptophan.