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問題詳情:
1.With annual rainfall close__________zero,Antarctica is technically a desert.
2.Antarctica holds 90% of the world's ice,and most of its fresh water is________a frozen state.
3.________average it is two kilometers thick.
4.Yet Antarctica is full of wildlife,which has adapted________its extreme conditions.
5.The rest of the plants are made up________mosses,algae and lichen.
6.Gases and minerals,________the form of volcanic dust trapped in the ice,can tell us a lot of about what the world's climate was like in past ages.
7.One rock,known________the “Alien” rock,may contain evidence of extraterrestrial life.
8.A Norwegian called Carstens Borchgrevink became the first man to set foot________the Antarctic mainland.
9.________particular,it aims to keep Antarctica free from nuclear tests and radioactive waste.
10.Today scientists________many countries travel to Antarctica to study its resources.
【回答】
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知識點:完成句子
題型:完型填空