2. 外语
  3. The writer offered ______ examples to support his argument. Volunteers taking part in the experiments in the Common Cold Resea

The writer offered ______ examples to support his argument. Volunteers taking part in the experiments in the Common Cold Resea

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问题 The writer offered  ______ examples to support his argument.
Volunteers taking part in the experiments in the Common Cold Research Unit ______.
选项 A、suffered a lot
B、never caught colds
C、often caught colds
D、became very strong
答案A
解析 志愿者进行了多种实验，冲冷水澡，在雨中淋雨等，所以说他们遭了一些罪，因此选A。
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