Through efforts by several environmental societies.the American buffalo is no lo
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Through efforts by several environmental societies，the American buffalo is no longer in danger of becoming a(n)________species．
A.dead
B.extinct
C.dangerous
D.deadly
试题答案
B
句意为：“通过几个环境协会的共同努力，美国野牛不再有绝种的危险了。”extinct绝种的，与句意相吻合。