首页 - TPO 30 听力Lecture第3篇 第3题
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题目
How might jarosite found on Mars differ from jarosite found on Earth?
Mars jarosite and Earth jarosite might have been created by different processes.
Mars jarosite might have been formed without water.
Mars jarosite might not contain as much iron or potassium as Earth jarosite.
Mars jarosite might be more acidic than Earth jarosite.
题目解析
Now, theoretically it is possible for jarosite to form without the help of biological life forms. But jarosite on Earth incorporates all kinds of microorganisms into its crystalline structure. 理论上说, jarosite 的形成可以没有生物参与,但地球上的 jarosite 形成是需要生物参与的。由此推断 jarosite 在地球上的形成过程可能与火星上的不同,因此 A 选项正确。

答案: A
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