Question

【题目】Jia Sixie wrote down his advice in a book called Qi Min Yao Shu，__________ was considered an important summary of the knowledge of farming.

A. which

B. who

C. that

D. what

Answer 1

【答案】A

【解析】句意：贾思勰在《齐民要术》中写下了他的建议,这本书被看做是农业知识的重要总结。本题考查非限制性定语从句，故排除C、D两项；本句的先行词是表示物的a book called Qi Min Yao Shu，故选择关系代词 which。