1)
A可能难懂一点,从It seems that…到that they felt ill可知医生对他们的心情会作研究——A正确
During the interviews,the people told researchers about were given colds by doctors and
had to stay alone in a room for six days.——B、C正确
4)
这个很好懂的,整篇文章说的都是医生的研究,怎样可以预防感冒,当然就选择B选项新闻报道newspaper report啦.