What effect does excessive positive ionization have on some people? By observing the behaviour of animals, scientists may be ab

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问题 What effect does excessive positive ionization have on some people?
By observing the behaviour of animals, scientists may be able to ______.

选项 A、prevent disasters
B、organize groups of people
C、predict earthquakes
D、control areas of California

答案C

解析 prevent disasters对此题造成干扰，原文把earthquake作为disaster的一种例子，很容易让人匆忙误选。但这里我们要避免想当然，原文只提到了foresee，与prevent并非一回事。

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