单选题
高中英语
2023-01-31
Volunteers taking part in the experiments in the Common Cold Research Unit________.
A．all suffered from cold and wet
B．never caught colds
C．caught colds easily
D．all caught colds because of the harsh environment
参考答案
A
答案解析
细节题。文章第四段提到，这些志愿者在洗完热水澡后，穿上泳衣，在自己身上浇凉水，然后站在通风的房间里；有些人一整天穿着湿袜子，还有人在雨中运动，直到筋疲力尽，以检测他们会不会得感冒。结果证明所有人都没有得感冒，直到他们接触了感冒病毒。故B、C、D三项错误，A项正确。
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A．the experiments on the common cold
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