According to Robert Weinberg, which of the following is true? The word "dormant" in the third paragraph most probably means ___

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问题 According to Robert Weinberg, which of the following is true?
The word "dormant" in the third paragraph most probably means ______.

选项 A、dead
B、ever-present
C、inactive
D、potential

答案C

解析 词汇理解题。参阅第三段倒数第二句,译为:辐射到食物中的任何宇宙射线都可能激活沉睡中的致癌因子,但是如何激活还尚未得知。
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