在第十三堂课我们提供了不可翻书的期中考题库（请注意并无期末考）。本学期与过去几年来的期中考题皆可在此取得：
There is a closed book midterm exam given during lecture 13. (Note that there is no final exam.) Midterm exams for this term, as well as those from past years, are available.