Within the foreseeable future there may be a major______of species, involving from one-third to two-thirds of all the species no

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问题 Within the foreseeable future there may be a major______of species, involving from one-third to two-thirds of all the species now in existence.

选项 A、exhaustion
B、exhibition
C、extension
D、extinction

答案D

解析 这是一道词汇题,考点是形相近的名词意思的辨析。
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