2. 金融经济
  3. On Venus there is a lot of__________.A.water B.carbon dioxide C.carbon monoxide

On Venus there is a lot of__________.A.water B.carbon dioxide C.carbon monoxide

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问题 On Venus there is a lot of__________.
选项 A.water
B.carbon dioxide
C.carbon monoxide
D.oxygen
答案B
解析由第二段的最后一句话中的“there is only a tiny amount of water there(Venus)”得知，A选项错误。第三段结尾说明，藻类通过火箭运往金星，然后“In a fairly short time，the algae will break down thecarbon dioxide into oxygen and carbon”，说明金星上有大量的二氧化碳。C和D选项错误。故选B。
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