2. 外语
  3. According to this passage, a diet high in plant-based foods plays an important role in fighting all kinds of diseases. It is pr

According to this passage, a diet high in plant-based foods plays an important role in fighting all kinds of diseases. It is pr

admin2009-04-23  33
问题 According to this passage, a diet high in plant-based foods plays an important role in fighting all kinds of diseases.
It is proved that the uncontrolled activity of free radicals caused many cancers.
选项 A、Y
B、N
C、NG
答案B
解析 词语理解题。在本文的第一大部分(Cancer Fighters)的第四段中就提到：“The uncontrolled activity of free radicals is believed to cause many cancers"。这说明：人们认为自由基的无控制活动会导致许多癌症。所以，说" It is proved”是没有依据的。
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