According to the author, it is ______.A、important to read critically rather than memorize the facts
B、useful to underline some important ideas
C、beneficial to take notes while reading
D、good to leave no marks on pages
【正确答案】：D
【题目解析】：细节推理题。全文并没有提到A选项的内用也无从推断；第二段Some readers underline the page as they read, but I find that a page which I have underlined cannot give me so many fresh impressions as one which has no marks on it从这一句可以看出作者不喜欢underline the page ，所以B选项是错的；文中只提到了My habit is to make my own index of a book as I read，也不是C选项所要表达的内容；从第二段，尤其是最后一句话可以看出D选项符合题意。