一道很困惑的题

To read of Abigail Adams' lengthy separation from her family,her difficult travels,and her constant battles with illness is to feel intensely how harsh life was even for so-called aristocracy of Revolutionary times.

A.to read of

B.reading about

C.having read about

D.once one reads of

E.to have read of

大家帮帮我，怎么区别A和B啊？非常感谢

to do sth is to do sth(对应)

doing sth is doing sth(结构本身没问题,可是gmat好像不太喜欢这结构,常把些地方改错,让它成为错误选项)

我明白了，谢谢

请楼主在标题里面给出题目出处，方便大家回帖，方便后人查询，谢谢啊

另外，多个题目，恳请一题一贴，才能方便讨论！

各个区的发贴规范：

GMAT机经＋MATH讨论
http://forum.chasedream.com/dispbbs.asp?boardID=22&ID=128922

GMAT语法区版规
http://forum.chasedream.com/dispbbs.asp?boardID=23&ID=79830

GMAT逻辑区格式和搜索
http://forum.chasedream.com/dispbbs.asp?boardID=24&ID=74827

GMAT阅读区-发贴格式和搜索提示
http://forum.chasedream.com/dispbbs.asp?boardID=25&ID=41017

GMAT AWA区版规
http://forum.chasedream.com/dispbbs.asp?boardID=26&ID=107312

方便自己，方便他人，感谢您的理解和支持！