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(括弧内数字,点前为期,点后为页)·我们的地球·陨石撞击作用和全球变化·········……李维安译(l .2)探索海底的奥秘..······················……姚向东(l .4)地球上的未解之谜(续二》··············……陈辉(2.2)揭开远古之谜
(Figures in parentheses, point-by-point, page after page) · Our Earth · Meteorite Impact and Global Change ···································· ······················································································· Yao Xiangdong (1.4) The Unsolved Mysteries on Earth (Continued) Chen Hui (2.2) Unveil the mystery of ancient times