题目

 The new technology, if _____ to farming, will help increase the grain output. A. applying                      B. to apply                    C. applied                 D. having applied 答案： C  本题考查非谓语作状语的用法，句子主要the new technology和apply之间是逻辑动宾关系，所以用过去分词。

查看本题答案和解析