on the book,in the book有什么区别

题目

on the book,in the book有什么区别
首先,我不是问方位的问题,而是例如：I read a story book,there are many pictures ____it.
A.on B.in

答案

in the book是指在书本里面,指书本的内容或插在书本里面的东西
on the book是指在书的封面上,或在书本上面的东西