第18题: [单项选择]A survey was carried out on the death rate of new-born babies in that region, ______ were surprising. A. as results B. which results C. the results of it D. the results of which 参考答案:D 答案解析:[解析] 从句了结构分析,逗号后的句了为定语从句。可首先排除A、C两项,因为这两项中没有关系代词。再根据“结果”和“调查”两者的关系,“调查”应是“结果”的定语。