单选题 For the last 20 years or so the subject of global warming has______heated debate among the world's brightest minds.
【正确答案】 A
【答案解析】解析：动词词义辨析。spawn“引起；孵出”；inject“充血；注入”；model“模仿；被效仿”；move“移动；感动”。句意应为“引发争论”。故答案为A。