【题目】This book gives a brief ______ of the history of the castle and details of the art collection in the main hall.
A.outline
B.event
C.article
D.look

【答案】A
【解析】句意：这本书介绍了城堡的历史概要和大厅里所收藏的艺术品的细节。outline“轮廓，概要”；give an outline of sth.“概要说明某事”，故选A。