background extinction
基礎科學

        Definition:Background extinction,also known as “normal extinction”,refers to theextinction in earth’s geological and biological history before humans became a primarycontributor to extinctions.背景滅絕bèi jǐng miè jué指地質(zhì)生物歷程中生物由于自身的原因在正常環(huán)境狀況......（本文共 541 字）     [閱讀本文] >>