【题目】---________ has brought about the improvement of Chinese farmers’ living standards?
---The Party’s social benefiting policies, of course．
A. What is it that B. What it is that
C. What is that D. What is it
在线课程【答案】A
【解析】到底是什么带来了中国农民生活水平的提高。根据句子结构可知强调句的特殊疑问句：疑问词+is it that…，且句子中缺主语，结合句意可知选A。