________ the search engine just gave me some brief introductions rather than the whole content of the book to read．
A.Luckily
B.Mostly
C.Funnily
D.Disappointingly
网友回答
D解析luckily幸运、感到幸运的是；mostly大部分地，主要地；funnily滑稽地、可笑地，表示事物的特征；disappointingly令人感到失望的是。根据句意可知