单选题
Through efforts by several environmental societies, the American buffalo is no longer in danger of becoming an______ species.
【正确答案】
B
【答案解析】题意是:通过几个环保团体的努力,美国水牛不再处于成为______物种的危险之中。[B] extinct“灭绝的,绝种的”,符合题意。[A]offensive“冒犯的;进攻的”,[C] distinct“不同的,明显的”,[D] withered“枯萎的,凋谢的”都与题意不符。