2. 职称英语
  3. What is the main idea of the passage? [br] The passage suggests that oxygen rema

What is the main idea of the passage? [br] The passage suggests that oxygen rema

游客2024-01-05  34
问题 What is the main idea of the passage? [br] The passage suggests that oxygen remained in the atmosphere because ______.
选项 A、it was caused by outgassing
B、it was heavier than hydrogen
C、hydrogen became trapped in limestone
D、rays from the sun created equal amounts of hydrogen and oxygen ______.
答案 B
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3334723.html
相关试题推荐
随机试题
最新回复(0)