Although any destruction of vitamins caused by food irradiation could be ______ the use of diet supplements, there may be no protection from carcinogens that some fear might be introduced into foods by the process.
【正确答案】 A
【答案解析】- 方程等号：although尽管，反义重复；no，否定词，取反。
- 强词和对应：although部分说通过使用饮食补充剂，可以______由食品辐射所引起的维生素破坏，但是对于致癌物没有保护作用，所以空格和protection根据although和no两次取反后取同。counterbalanced by被抵消，attributed to被归因于，inferred from从…推导出，augmented with增加，stimulated by被刺激。答案选A。