IELTS reading main_idea Practice
根據本文，車輛到電網 (V2G) 技術的核心概念是什麼？
Question type: multiple choice · Difficulty: advanced
- A. 它讓電動車能夠從電網無線充電。
- B. 它優先為商用車充電而不是私家車。
- C. 它將電動車變成可以支援電網的移動式儲能裝置。
- D. 這是一個追蹤電動車能源消耗以進行計費的系統。
Explanation Preview
Paragraph C explains V2G by stating: 'it can also discharge... energy back into the grid... In essence, a parked and connected EV... becomes a mobile battery, a distributed energy resource'. This perfectly matches the description in option C.