Unit 3（）Text A. VocabularyFill in the blank in the following sentence with one of these words and change the form if necessary. (anathema, obsession, indulge, provocative, spark, harness, virtual, propel, fickle, generate)13. There is a great deal of inte

Unit 3（）Text A. VocabularyFill in the blank in the following sentence with one of these words and change the form if necessary. (anathema, obsession, indulge, provocative, spark, harness, virtual, propel, fickle, generate)13. There is a great deal of interest in （） wind and waves as new sources of power.
正确答案：harnessing