An exceptionally literate people, more Icelanders publish books per capita than do the people of any other nation.
- more Icelanders publish books per capita than do the people of
（more的位置不对）
- more Icelandic books are published by Icelanders per capita than by the people of（not people）
- Icelanders publish more books per capita than do the people of
- Iceland’s per capita publication of books is higher than that by
- the per capita publication of Icelandic books is higher than that in
想知道为什么黄线处可以用复数,而划绿线处可以用单数An呢? 这样符合主谓一致吗? | 
