2. 外语
  3. Some workers in the nuclear power station were exposed to high levels of______.

Some workers in the nuclear power station were exposed to high levels of______.

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问题 Some workers in the nuclear power station were exposed to high levels of______.
选项 A、radiation
B、cancer
C、microwaves
D、high temperature
答案A
解析 名词词义辨析。radiation“辐射，放射线，放射物”；cancer“癌症”；microwaves“微波”；hightemperature“高温”。根据句中the nuclear power station提供的语境，只有radiation符合句意。故答案为A。
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